diff --git a/.github/workflows/build_android.yml b/.github/workflows/build_android.yml
index d20804a54..1d670a65c 100644
--- a/.github/workflows/build_android.yml
+++ b/.github/workflows/build_android.yml
@@ -42,12 +42,6 @@ jobs:
     strategy:
       fail-fast: false
     env:
-      # LC_ALL, LANG and U3D_PASSWORD are needed for U3D.
-      LC_ALL: en_US.UTF-8
-      LANG: en_US.UTF-8
-      U3D_PASSWORD: ""
-      # Disable checking for U3D updates, since it is buggy
-      U3D_SKIP_UPDATE_CHECK: 1
       CCACHE_DIR: ${{ github.workspace }}/ccache_dir
   
     steps:
@@ -103,32 +97,16 @@ jobs:
           echo "NDK_ROOT=/tmp/android-ndk-r21e" >> $GITHUB_ENV
           echo "ANDROID_NDK_HOME=/tmp/android-ndk-r21e" >> $GITHUB_ENV
 
-      - name: Install Unity installer (U3D)
-        uses: nick-invision/retry@v2
-        with:
-          timeout_minutes: 10
-          max_attempts: 3
-          shell: bash
-          command: gem install u3d -v 1.2.3
-
       - name: Install python deps
         shell: bash
         run: |
           pip install -r scripts/gha/requirements.txt
       
-      - name: Install Unity
-        uses: nick-invision/retry@v2
+      - id: unity_setup
+        uses: firebase/firebase-unity-sdk/gha/unity@main
         with:
-          timeout_minutes: 15
-          max_attempts: 3
-          shell: bash
-          command:  |
-            python scripts/gha/unity_installer.py --install --platforms ${{ inputs.unity_platform_name }} --version ${{ inputs.unity_version }}
-      
-      - name: Setup Unity path
-        shell: bash
-        run: |
-          echo "UNITY_ROOT_DIR=$( python scripts/gha/print_matrix_configuration.py -u ${{ inputs.unity_version }} -k unity_path )" >> $GITHUB_ENV
+          version: ${{ inputs.unity_version }}
+          platforms: ${{ inputs.unity_platform_name }}
 
       - name: Display Swig Version
         shell: bash
diff --git a/.github/workflows/build_ios.yml b/.github/workflows/build_ios.yml
index b32194880..92d4485b1 100644
--- a/.github/workflows/build_ios.yml
+++ b/.github/workflows/build_ios.yml
@@ -43,12 +43,6 @@ jobs:
       fail-fast: false
 
     env:
-      # LC_ALL, LANG and U3D_PASSWORD are needed for U3D.
-      LC_ALL: en_US.UTF-8
-      LANG: en_US.UTF-8
-      U3D_PASSWORD: ""
-      # Disable checking for U3D updates, since it is buggy
-      U3D_SKIP_UPDATE_CHECK: 1
       xcodeVersion: "13.3.1"
   
     steps:
@@ -82,32 +76,16 @@ jobs:
           python scripts/gha/install_prereqs_desktop.py
           cd ..
 
-      - name: Install Unity installer (U3D)
-        uses: nick-invision/retry@v2
-        with:
-          timeout_minutes: 10
-          max_attempts: 3
-          shell: bash
-          command:  gem install u3d -v 1.2.3
-
       - name: Install python deps
         shell: bash
         run: |
           pip install -r scripts/gha/requirements.txt
       
-      - name: Install Unity
-        uses: nick-invision/retry@v2
+      - id: unity_setup
+        uses: firebase/firebase-unity-sdk/gha/unity@main
         with:
-          timeout_minutes: 15
-          max_attempts: 3
-          shell: bash
-          command:  |
-            python scripts/gha/unity_installer.py --install --platforms ${{ inputs.unity_platform_name }} --version ${{ inputs.unity_version }}
-      
-      - name: Setup Unity path
-        shell: bash
-        run: |
-          echo "UNITY_ROOT_DIR=$( python scripts/gha/print_matrix_configuration.py -u ${{ inputs.unity_version }} -k unity_path )" >> $GITHUB_ENV
+          version: ${{ inputs.unity_version }}
+          platforms: ${{ inputs.unity_platform_name }}
 
       - name: Build SDK (iOS)
         timeout-minutes: 90
diff --git a/.github/workflows/build_linux.yml b/.github/workflows/build_linux.yml
index 70b3c8baa..7646f7a0e 100644
--- a/.github/workflows/build_linux.yml
+++ b/.github/workflows/build_linux.yml
@@ -42,13 +42,6 @@ jobs:
     strategy:
       fail-fast: false
       
-    env:
-        # LC_ALL, LANG and U3D_PASSWORD are needed for U3D.
-        LC_ALL: en_US.UTF-8
-        LANG: en_US.UTF-8
-        U3D_PASSWORD: ""
-        # Disable checking for U3D updates, since it is buggy
-        U3D_SKIP_UPDATE_CHECK: 1
     steps:
       - uses: actions/checkout@v3
         with:
@@ -68,14 +61,6 @@ jobs:
         with:
           ruby-version: 3.0.2
 
-      - name: Install Unity installer (U3D)
-        uses: nick-invision/retry@v2
-        with:
-          timeout_minutes: 10
-          max_attempts: 3
-          shell: bash
-          command:  gem install u3d -v 1.2.3
-
       - name: Setup python
         uses: actions/setup-python@v4
         with:
@@ -98,19 +83,15 @@ jobs:
         run: |
           sudo apt install openssl
 
-      - name: Install Unity
-        uses: nick-invision/retry@v2
+      - id: unity_setup
+        uses: firebase/firebase-unity-sdk/gha/unity@main
         with:
-          timeout_minutes: 15
-          max_attempts: 3
-          shell: bash
-          command:  |
-            python scripts/gha/unity_installer.py --install --platforms ${{ inputs.unity_platform_name }} --version ${{ inputs.unity_version }}
+          version: ${{ inputs.unity_version }}
+          platforms: ${{ inputs.unity_platform_name }}
 
-      - name: Setup Unity path
+      - name: Setup Swig Env
         shell: bash
         run: |
-          echo "UNITY_ROOT_DIR=$( python scripts/gha/print_matrix_configuration.py -u ${{inputs.unity_version}} -k unity_path )" >> $GITHUB_ENV
           echo "$(swig -swiglib)" >> $GITHUB_PATH
           swig -swiglib
           echo "SWIG_DIR=$(swig -swiglib)" >> $GITHUB_ENV
diff --git a/.github/workflows/build_macos.yml b/.github/workflows/build_macos.yml
index 4393d24d8..1c20c5188 100644
--- a/.github/workflows/build_macos.yml
+++ b/.github/workflows/build_macos.yml
@@ -41,14 +41,7 @@ jobs:
     runs-on: macos-latest
     strategy:
       fail-fast: false
-      
-    env:
-        # LC_ALL, LANG and U3D_PASSWORD are needed for U3D.
-        LC_ALL: en_US.UTF-8
-        LANG: en_US.UTF-8
-        U3D_PASSWORD: ""
-        # Disable checking for U3D updates, since it is buggy
-        U3D_SKIP_UPDATE_CHECK: 1
+
     steps:
       - uses: actions/checkout@v3
         with:
@@ -68,14 +61,6 @@ jobs:
         with:
           ruby-version: 3.0.2
 
-      - name: Install Unity installer (U3D)
-        uses: nick-invision/retry@v2
-        with:
-          timeout_minutes: 10
-          max_attempts: 3
-          shell: bash
-          command: gem install u3d -v 1.2.3
-
       - name: Setup python
         uses: actions/setup-python@v4
         with:
@@ -104,19 +89,15 @@ jobs:
           # brew won't overwrite MacOS system default OpenSSL, so force it here.
           echo "OPENSSL_ROOT_DIR=$(brew --prefix openssl --installed)" >> $GITHUB_ENV
 
-      - name: Install Unity
-        uses: nick-invision/retry@v2
+      - id: unity_setup
+        uses: firebase/firebase-unity-sdk/gha/unity@main
         with:
-          timeout_minutes: 15
-          max_attempts: 3
-          shell: bash
-          command:  |
-            python scripts/gha/unity_installer.py --install --platforms ${{ inputs.unity_platform_name }} --version ${{ inputs.unity_version }}
+          version: ${{ inputs.unity_version }}
+          platforms: ${{ inputs.unity_platform_name }}
 
-      - name: Setup Unity path
+      - name: Setup Swig Env
         shell: bash
         run: |
-          echo "UNITY_ROOT_DIR=$( python scripts/gha/print_matrix_configuration.py -u ${{ inputs.unity_version }} -k unity_path )" >> $GITHUB_ENV
           echo "$(swig -swiglib)" >> $GITHUB_PATH
           swig -swiglib
           echo "SWIG_DIR=$(swig -swiglib)" >> $GITHUB_ENV
diff --git a/.github/workflows/build_tvos.yml b/.github/workflows/build_tvos.yml
index babd32fa4..13f9e82ff 100644
--- a/.github/workflows/build_tvos.yml
+++ b/.github/workflows/build_tvos.yml
@@ -64,12 +64,6 @@ jobs:
       fail-fast: false
 
     env:
-      # LC_ALL, LANG and U3D_PASSWORD are needed for U3D.
-      LC_ALL: en_US.UTF-8
-      LANG: en_US.UTF-8
-      U3D_PASSWORD: ""
-      # Disable checking for U3D updates, since it is buggy
-      U3D_SKIP_UPDATE_CHECK: 1
       xcodeVersion: "13.3.1"
 
     steps:
@@ -103,14 +97,6 @@ jobs:
           python scripts/gha/install_prereqs_desktop.py
           cd ..
 
-      - name: Install Unity installer (U3D)
-        uses: nick-invision/retry@v2
-        with:
-          timeout_minutes: 10
-          max_attempts: 3
-          shell: bash
-          command:  gem install u3d -v 1.2.3
-
       - name: Install python deps
         shell: bash
         run: |
@@ -122,19 +108,11 @@ jobs:
         run: |
           pod repo add cocoapods https://github.com/CocoaPods/Specs.git
 
-      - name: Install Unity
-        uses: nick-invision/retry@v2
+      - id: unity_setup
+        uses: firebase/firebase-unity-sdk/gha/unity@main
         with:
-          timeout_minutes: 15
-          max_attempts: 3
-          shell: bash
-          command:  |
-            python scripts/gha/unity_installer.py --install --platforms ${{ inputs.unity_platform_name }} --version ${{ inputs.unity_version }}
-
-      - name: Setup Unity path
-        shell: bash
-        run: |
-          echo "UNITY_ROOT_DIR=$( python scripts/gha/print_matrix_configuration.py -u ${{ inputs.unity_version }} -k unity_path )" >> $GITHUB_ENV
+          version: ${{ inputs.unity_version }}
+          platforms: ${{ inputs.unity_platform_name }}
 
       - name: Build SDK (tvOS)
         timeout-minutes: 90
diff --git a/.github/workflows/build_windows.yml b/.github/workflows/build_windows.yml
index e1508bb12..34224b102 100644
--- a/.github/workflows/build_windows.yml
+++ b/.github/workflows/build_windows.yml
@@ -41,14 +41,7 @@ jobs:
     runs-on: windows-2019
     strategy:
       fail-fast: false
-    
-    env:
-        # LC_ALL, LANG and U3D_PASSWORD are needed for U3D.
-        LC_ALL: en_US.UTF-8
-        LANG: en_US.UTF-8
-        U3D_PASSWORD: ""
-        # Disable checking for U3D updates, since it is buggy
-        U3D_SKIP_UPDATE_CHECK: 1
+ 
     steps:
       - uses: actions/checkout@v3
         with:
@@ -71,14 +64,6 @@ jobs:
         with:
           ruby-version: 3.0.2
 
-      - name: Install Unity installer (U3D)
-        uses: nick-invision/retry@v2
-        with:
-          timeout_minutes: 10
-          max_attempts: 3
-          shell: bash
-          command: gem install u3d -v 1.2.3
-
       - name: Setup python
         uses: actions/setup-python@v4
         with:
@@ -104,19 +89,15 @@ jobs:
         run: |
           choco install openssl -r
 
-      - name: Install Unity
-        uses: nick-invision/retry@v2
+      - id: unity_setup
+        uses: firebase/firebase-unity-sdk/gha/unity@main
         with:
-          timeout_minutes: 15
-          max_attempts: 3
-          shell: bash
-          command: |
-            python scripts/gha/unity_installer.py --install --platforms ${{ inputs.unity_platform_name }} --version ${{ inputs.unity_version }}
+          version: ${{ inputs.unity_version }}
+          platforms: ${{ inputs.unity_platform_name }}
 
-      - name: Setup Unity path
+      - name: Setup Swig Env
         shell: bash
         run: |
-          echo "UNITY_ROOT_DIR=$( python scripts/gha/print_matrix_configuration.py -u ${{inputs.unity_version}} -k unity_path )" >> $GITHUB_ENV
           echo "$(swig -swiglib)" >> $GITHUB_PATH
           swig -swiglib
           echo "SWIG_DIR=$(swig -swiglib)" >> $GITHUB_ENV
diff --git a/.github/workflows/integration_tests.yml b/.github/workflows/integration_tests.yml
index 4823ac48b..a3db1bd28 100644
--- a/.github/workflows/integration_tests.yml
+++ b/.github/workflows/integration_tests.yml
@@ -164,13 +164,6 @@ jobs:
       fail-fast: false
       matrix: ${{ fromJson(needs.check_and_prepare.outputs.build_matrix) }}
     env:
-      # LC_ALL, LANG and U3D_PASSWORD are needed for U3D.
-      LC_ALL: en_US.UTF-8
-      LANG: en_US.UTF-8
-      U3D_PASSWORD: ""
-      # Disable checking for U3D updates, since it is buggy
-      U3D_SKIP_UPDATE_CHECK: 1
-      # Which xcode version to use
       xcodeVersion: "13.3.1"
     steps:
       - id: matrix_info
@@ -178,16 +171,6 @@ jobs:
           echo "::set-output name=info::${{ matrix.unity_version }}-${{matrix.os}}-${{ matrix.platform }}-${{ matrix.ios_sdk }}"
           echo "::set-output name=artifact_suffix::${{ matrix.unity_version }}-${{matrix.os}}-${{ matrix.ios_sdk }}"
       - uses: actions/checkout@v3
-      - uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: 3.0.2
-      - name: Install Unity installer (U3D)
-        uses: nick-invision/retry@v2
-        with:
-          timeout_minutes: 10
-          max_attempts: 3
-          shell: bash
-          command: gem install u3d -v 1.2.3
       - name: Setup python
         uses: actions/setup-python@v4
         with:
@@ -200,26 +183,14 @@ jobs:
       - name: setup Xcode version
         if: runner.os == 'macOS'
         run: sudo xcode-select -s /Applications/Xcode_${{ env.xcodeVersion }}.app/Contents/Developer
-      - name: Install Unity
-        uses: nick-invision/retry@v2
+      - id: unity_setup
+        uses: firebase/firebase-unity-sdk/gha/unity@main
         with:
-          timeout_minutes: 30
-          max_attempts: 3
-          shell: bash
-          command: |
-            python scripts/gha/unity_installer.py --install \
-              --platforms ${{ matrix.platform }} \
-              --version ${{ matrix.unity_version }}
-      - name: Activate Unity license
-        timeout-minutes: 10
-        shell: bash
-        run: |
-          python scripts/gha/unity_installer.py --activate_license \
-            --version ${{ matrix.unity_version }}  \
-            --username "${{ secrets.UNITY_USERNAME }}" \
-            --password "${{ secrets.UNITY_PASSWORD }}" \
-            --serial_ids "${{ secrets.SERIAL_ID }}" \
-            --logfile "testapps/activate_license.log"
+          version: ${{ matrix.unity_version }}
+          platforms: ${{ matrix.platform }}
+          username: ${{ secrets.UNITY_USERNAME }}
+          password: ${{ secrets.UNITY_PASSWORD }}
+          serial_ids: ${{ secrets.SERIAL_ID }}
       - name: Prepare for integration tests
         timeout-minutes: 10
         shell: bash
@@ -245,9 +216,9 @@ jobs:
           fi
           python scripts/gha/build_testapps.py \
             --t ${{ needs.check_and_prepare.outputs.apis }} \
-            --u $( python scripts/gha/print_matrix_configuration.py -k version -u ${{matrix.unity_version}}) \
-            --p ${{ matrix.platform }} \
-            --ios_sdk ${{ matrix.ios_sdk }} \
+            --u "${{ steps.unity_setup.outputs.unity_version }}" \
+            --p "${{ matrix.platform }}" \
+            --ios_sdk "${{ matrix.ios_sdk }}" \
             --plugin_dir ~/Downloads/firebase_unity_sdk \
             --output_directory "${{ github.workspace }}" \
             --artifact_name "${{ steps.matrix_info.outputs.info }}" \
@@ -256,17 +227,10 @@ jobs:
       - name: Return Unity license
         # Always returns true, even when job failed or canceled. But will not run when a critical failure prevents the task from running. 
         if: always()
-        # Retry at most 3 times when Return Unity license fails.
-        uses: nick-invision/retry@v2
+        uses: firebase/firebase-unity-sdk/gha/unity@main
         with:
-          timeout_minutes: 10
-          max_attempts: 3
-          shell: bash
-          command: |
-            python scripts/gha/unity_installer.py --release_license \
-              --version ${{ matrix.unity_version }} \
-              --logfile "testapps/release_license.log"
-            cat testapps/release_license.log
+          version: ${{ matrix.unity_version }}
+          release_license: "true"
       - name: Prepare results summary artifact
         if: ${{ !cancelled() }}
         shell: bash
@@ -370,28 +334,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix: ${{ fromJson(needs.check_and_prepare.outputs.playmode_matrix) }}
-    env:
-      # LC_ALL, LANG and U3D_PASSWORD are needed for U3D.
-      LC_ALL: en_US.UTF-8
-      LANG: en_US.UTF-8
-      U3D_PASSWORD: ""
-      # Disable checking for U3D updates, since it is buggy
-      U3D_SKIP_UPDATE_CHECK: 1
     steps:
       - id: matrix_info
         run: |
           echo "::set-output name=info::${{ matrix.unity_version }}-${{matrix.os}}-Playmode-github_runner-${{ matrix.os }}"
       - uses: actions/checkout@v3
-      - uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: 3.0.2
-      - name: Install Unity installer (U3D)
-        uses: nick-invision/retry@v2
-        with:
-          timeout_minutes: 10
-          max_attempts: 3
-          shell: bash
-          command: gem install u3d -v 1.2.3
       - name: Setup python
         uses: actions/setup-python@v4
         with:
@@ -401,25 +348,13 @@ jobs:
         shell: bash
         run: |
           pip install -r scripts/gha/requirements.txt
-      - name: Install Unity
-        uses: nick-invision/retry@v2
+      - id: unity_setup
+        uses: firebase/firebase-unity-sdk/gha/unity@main
         with:
-          timeout_minutes: 20
-          max_attempts: 3
-          shell: bash
-          command: |
-            python scripts/gha/unity_installer.py --install \
-              --version ${{ matrix.unity_version }}
-      - name: Activate Unity license
-        timeout-minutes: 10
-        shell: bash
-        run: |
-          python scripts/gha/unity_installer.py --activate_license \
-            --version ${{ matrix.unity_version }}  \
-            --username "${{ secrets.UNITY_USERNAME }}" \
-            --password "${{ secrets.UNITY_PASSWORD }}" \
-            --serial_ids "${{ secrets.SERIAL_ID }}" \
-            --logfile "testapps/activate_license.log"
+          version: ${{ matrix.unity_version }}
+          username: ${{ secrets.UNITY_USERNAME }}
+          password: ${{ secrets.UNITY_PASSWORD }}
+          serial_ids: ${{ secrets.SERIAL_ID }}
       - name: Prepare for integration tests
         timeout-minutes: 10
         shell: bash
@@ -443,7 +378,7 @@ jobs:
           fi
           python scripts/gha/build_testapps.py \
             --t ${{ needs.check_and_prepare.outputs.apis }} \
-            --u $( python scripts/gha/print_matrix_configuration.py -k version -u ${{matrix.unity_version}}) \
+            --u ${{ steps.unity_setup.outputs.unity_version }} \
             --p Playmode \
             --plugin_dir ~/Downloads/firebase_unity_sdk \
             --output_directory "${{ github.workspace }}" \
@@ -453,17 +388,10 @@ jobs:
       - name: Return Unity license
         # Always returns true, even when job failed or canceled. But will not run when a critical failure prevents the task from running. 
         if: always()
-        # Retry at most 3 times when Return Unity license fails.
-        uses: nick-invision/retry@v2
+        uses: firebase/firebase-unity-sdk/gha/unity@main
         with:
-          timeout_minutes: 10
-          max_attempts: 3
-          shell: bash
-          command: |
-            python scripts/gha/unity_installer.py --release_license \
-              --version ${{ matrix.unity_version }} \
-              --logfile "testapps/release_license.log"
-            cat testapps/release_license.log
+          version: ${{ matrix.unity_version }}
+          release_license: "true"
       - name: Prepare results summary artifact
         if: ${{ !cancelled() }}
         shell: bash
diff --git a/gha/unity/README.md b/gha/unity/README.md
new file mode 100644
index 000000000..90aa1b9f9
--- /dev/null
+++ b/gha/unity/README.md
@@ -0,0 +1,109 @@
+# `unity-setup` GitHub Action
+
+## Inputs
+-  `version`: **[Required]** Unity Major Version Number. Currently supported values: [2019, 2020].
+
+-  `platforms`: Platforms that you'd like to support, if not provided, some platforms may encounter errors. Values: [Android,iOS,tvOS,Windows,macOS,Linux].
+
+-  `username`: Required when Activate Unity license. Refer to the Usage section below.
+
+-  `password`: Required when Activate Unity license. Refer to the Usage section below.
+
+-  `serial_ids`: Required when Activate Unity license. Refer to the Usage section below.
+
+-  `release_license`: If a license has been activated in the pervious step, then **must** add anothe step and set **"ture"** to `release_license` input.
+
+## Output
+
+This GitHub Action will provide `unity_version` (full unity version) output and `UNITY_ROOT_DIR` (Unity project directory) environment variable 
+
+-   Output usage:
+    ```yml
+    - id: unity_setup
+      uses: firebase/firebase-unity-sdk/gha/unity@main
+      with:
+        version: ${{ unity_version }}
+        platforms: ${{ platforms }}
+    - run: |
+        echo '${{ steps.unity_setup.outputs.unity_version }}'
+        echo '$UNITY_ROOT_DIR'
+    ```
+
+## Usage
+-   Install Unity without Activation
+    ```yml
+    jobs:
+      build_sdk:
+        # ...
+
+        steps:
+          # ...
+          - id: unity_setup
+            uses: firebase/firebase-unity-sdk/gha/unity@main
+            with:
+              version: ${{ unity_version }}
+              platforms: ${{ platforms }}
+    ```
+
+-   Install Unity, Activate and Release Unity License
+    ```yml
+    jobs:
+      build_testapp:
+        # ...
+
+        steps:
+          # ...
+          - id: unity_setup
+            uses: firebase/firebase-unity-sdk/gha/unity@main
+            with:
+              version: ${{ unity_version }}
+              platforms: ${{ platforms }}
+              username: ${{ secrets.UNITY_USERNAME }}
+              password: ${{ secrets.UNITY_PASSWORD }}
+              serial_ids: ${{ secrets.SERIAL_ID }}
+          # ...
+          - id: release_license
+            uses: firebase/firebase-unity-sdk/gha/unity@main
+            with:
+              version: ${{ unity_version }}
+              release_license: "true"
+    ```
+
+## How to upgrade supported unity versions
+**Background**
+
+This GitHub Action leverages [U3D](github.com/DragonBox/u3d), which is a command line tool for working with Unity from the command line on all three operating systems. 
+
+In this GitHub Action, supported Unity Versions are maintained by `UNITY_SETTINGS` in `gha/unity/unity_installer.py`. 
+
+**Add a new Unity version support**
+
+1. Install [U3D](github.com/DragonBox/u3d).
+
+2. Generate new JSON string and added it to `UNITY_SETTINGS`:
+  -   `Major_version_number`: unity major version number: 2020, 2021, etc.
+  -   `Full_version_number`: unity full version number. e.g. 2020.3.34f1 for major version 2020. Run `u3d available` and select [Unity LTS versions](https://unity3d.com/unity/qa/lts-releases).
+  -   `Platform`: Values of [Android,iOS,tvOS,Windows,macOS,Linux]
+  -   `Package`:[Unity Hub must **not** been installed] Unity Packages that required for certain platform. e.g. ["Windows-mono"] pakcages for "Windows" platform. To list avaliable packages, run `u3d available -u $unity_version -p`.
+
+      ```
+      UNITY_SETTINGS = {
+        Major_version_number: {
+          OS: {
+            "version": Full_version_number,
+            "packages": {Platform: [Package], ...},
+          },
+          ...
+        },
+      }
+      ```
+
+**Common failures & solutions**
+
+1. If you met problem with `u3d` cmd (e.g. `u3d available -u $unity_version -p`), please install older version of `u3d` and disable the `u3d` version check. Then try it again.
+    ```
+    gem install u3d -v 1.2.3
+    export U3D_SKIP_UPDATE_CHECK=1
+    ``` 
+
+2. If you have problem with Android build. Make sure you are using the right version of NDK and JDK. Testapp building process is using a patch function `patch_android_env` in `build_testapp.py`. (Please refer [Unity Documentation](https://docs.unity3d.com/Manual/android-sdksetup.html) for Android environment setup).
diff --git a/gha/unity/action.yml b/gha/unity/action.yml
new file mode 100644
index 000000000..05e1b325b
--- /dev/null
+++ b/gha/unity/action.yml
@@ -0,0 +1,90 @@
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: 'Unity Setup'
+inputs:
+  version:
+    required: true
+  platforms:
+    required: false
+  username:
+    required: false
+  password:
+    required: false
+  serial_ids:
+    required: false
+  release_license:
+    required: false
+
+outputs:
+  unity_version:
+    value: ${{ steps.unity_installation.outputs.unity_version }}
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Return Unity license
+      if: inputs.release_license
+      uses: nick-invision/retry@v2
+      with:
+        timeout_minutes: 5
+        max_attempts: 2
+        shell: bash
+        command: |
+          python $GITHUB_ACTION_PATH/unity_installer.py --release_license \
+            --version ${{ inputs.version }} \
+            --logfile "testapps/release_license.log"
+          cat testapps/release_license.log
+    - name: Install Unity installer (U3D)
+      if: inputs.release_license == ''
+      uses: nick-invision/retry@v2
+      with:
+        timeout_minutes: 10
+        max_attempts: 2
+        shell: bash
+        command: gem install u3d -v 1.2.3
+    - name: Set the Unity Env
+      if: inputs.release_license == ''
+      shell: bash
+      run: |
+        echo "LC_ALL=en_US.UTF-8" >> $GITHUB_ENV
+        echo "LANG=en_US.UTF-8" >> $GITHUB_ENV
+        echo "U3D_PASSWORD=" >> $GITHUB_ENV
+        echo "U3D_SKIP_UPDATE_CHECK=1" >> $GITHUB_ENV
+    - id: unity_installation
+      name: Install Unity
+      if: inputs.release_license == ''
+      uses: nick-invision/retry@v2
+      with:
+        timeout_minutes: 12
+        max_attempts: 2
+        shell: bash
+        command: |
+          if [[ -n "${{ inputs.platforms }}" ]]; then
+            additional_flags+=(--platforms ${{ inputs.platforms }})
+          fi
+          unity_info=$( python $GITHUB_ACTION_PATH/unity_installer.py --install --version ${{ inputs.version }} ${additional_flags[*]} )
+          echo "UNITY_ROOT_DIR=$(cut -d',' -f2 <<< ${unity_info})" >> $GITHUB_ENV
+          echo "unity_version=$(cut -d',' -f1 <<< ${unity_info})" >> $GITHUB_OUTPUT
+    - name: Activate Unity license
+      if: inputs.release_license == '' && inputs.username != '' && inputs.password != '' && inputs.serial_ids != ''
+      shell: bash
+      run: |
+        python $GITHUB_ACTION_PATH/unity_installer.py --activate_license \
+          --version ${{ inputs.version }}  \
+          --username "${{ inputs.username }}" \
+          --password "${{ inputs.password }}" \
+          --serial_ids "${{ inputs.serial_ids }}" \
+          --logfile "testapps/activate_license.log"
+        cat testapps/activate_license.log
diff --git a/scripts/gha/unity_installer.py b/gha/unity/unity_installer.py
similarity index 78%
rename from scripts/gha/unity_installer.py
rename to gha/unity/unity_installer.py
index 4a752cfce..30b32a2c2 100644
--- a/scripts/gha/unity_installer.py
+++ b/gha/unity/unity_installer.py
@@ -80,20 +80,52 @@
 from absl import flags
 from absl import logging
 
-from print_matrix_configuration import UNITY_SETTINGS
-
 
 _CMD_TIMEOUT = 900
 
 _DEFALUT = "Default"
 _ANDROID = "Android"
 _IOS = "iOS"
-_TVOS ="tvOS"
+_TVOS = "tvOS"
 _WINDOWS = "Windows"
 _MACOS = "macOS"
 _LINUX = "Linux"
 _SUPPORTED_PLATFORMS = (_ANDROID, _IOS, _TVOS, _WINDOWS, _MACOS, _LINUX)
 
+# Plese use Unity LTS versions: https://unity3d.com/unity/qa/lts-releases
+# To list avaliable packages, install u3d, and use cmd "u3d available -u $unity_version -p"
+# The packages below is valid only if Unity Hub is not installed.
+UNITY_SETTINGS = {
+  "2020": {
+    _WINDOWS: {
+      "version": "2020.3.34f1",
+      "packages": {"Default": ["Unity"], "Android": ["Android"], "iOS": ["Ios"], "tvOS": ["appletv"], "Windows": None, "macOS": ["Mac-mono"], "Linux": ["Linux-mono"]},
+    },
+    _MACOS: {
+      "version": "2020.3.34f1",
+      "packages": {"Default": ["Unity"], "Android": ["Android"], "iOS": ["Ios"], "tvOS": ["appletv"], "Windows": ["Windows-mono"], "macOS": None, "Linux": ["Linux-mono"]},
+    },
+    _LINUX: {
+      "version": "2020.3.40f1",
+      "packages": {"Default": ["Unity"], "Android": ["Android"], "iOS": ["Ios"], "tvOS": None, "Windows": ["Windows-mono"], "macOS": ["Mac-mono"], "Linux": None}
+    }
+  },
+  "2019": {
+    _WINDOWS: {
+      "version": "2019.4.39f1",
+      "packages": {"Default": ["Unity"], "Android": ["Android"], "iOS": ["Ios"], "tvOS": ["appletv"], "Windows": None, "macOS": ["Mac-mono"], "Linux": ["Linux-mono"]},
+    },
+    _MACOS: {
+      "version": "2019.4.39f1",
+      "packages": {"Default": ["Unity"], "Android": ["Android"], "iOS": ["Ios"], "tvOS": ["appletv"], "Windows": ["Windows-mono"], "macOS": None, "Linux": ["Linux-mono"]},
+    },
+    _LINUX: {
+      "version": "2019.4.40f1",
+      "packages": {"Default": ["Unity"], "Android": ["Android"], "iOS": ["Ios"], "tvOS": ["appletv"], "Windows": ["Windows-mono"], "macOS": ["Mac-mono"], "Linux": None}
+    }
+  },
+}
+
 FLAGS = flags.FLAGS
 
 # These are the three actions supported by the tool.
@@ -182,6 +214,10 @@ def install_unity(unity_version, platforms):
        "-p", package_csv])
   logging.info("Finished installing Unity.")
 
+  unity_path = get_unity_path(unity_version)
+  logging.info("unity_path: %s", unity_path)
+  print("%s,%s" % (unity_full_version, unity_path))
+
 
 def uninstall_unity(unity_version):
   """Uninstalls Unity and build supports (packages)."""
@@ -200,7 +236,7 @@ def activate_license(username, password, serial_ids, logfile, unity_version):
   # succeeds. This has occurred e.g. in Unity 2019.3.15 on Mac.
   # To handle this case, we check the Unity logs for the message indicating
   # successful activation and ignore the error in that case.
-  unity = get_unity_path(unity_version)
+  unity = get_unity_executable(unity_version)
   logging.info("Found %d licenses. Attempting each.", len(serial_ids))
   for i, serial_id in enumerate(serial_ids):
     logging.info("Attempting license %d", i)
@@ -231,7 +267,7 @@ def activate_license(username, password, serial_ids, logfile, unity_version):
 
 def release_license(logfile, unity_version):
   """Releases the Unity license. Requires finding an installation of Unity."""
-  unity = get_unity_path(unity_version)
+  unity = get_unity_executable(unity_version)
   run([unity, "-quit", "-batchmode", "-returnlicense", "-logfile", logfile])
   logging.info("Unity license released.")
 
@@ -256,7 +292,7 @@ def get_os():
     return _LINUX
 
 
-def get_unity_path(version):
+def get_unity_executable(version):
   """Returns the path to this version of Unity, as generated by U3D."""
   # These are the path formats assumed by U3D, as documented here:
   # https://github.com/DragonBox/u3d
@@ -271,10 +307,25 @@ def get_unity_path(version):
     raise RuntimeError("Only Windows and MacOS are supported.")
 
 
+def get_unity_path(version):
+  """Returns the path to this version of Unity, as generated by U3D."""
+  # These are the path formats assumed by U3D, as documented here:
+  # https://github.com/DragonBox/u3d
+  full_version = UNITY_SETTINGS[version][get_os()]["version"]
+  if platform.system() == "Windows":
+    return "/c/Program Files/Unity_%s" % full_version
+  elif platform.system() == "Darwin":
+    return "/Applications/Unity_%s" % full_version
+  elif platform.system() == 'Linux':
+    return "/opt/unity-editor-%s" % full_version
+
+
 def run(args, check=True, timeout=_CMD_TIMEOUT):
   """Runs args in a subprocess, throwing an error on non-zero return code."""
   logging.info("run cmd: %s", " ".join(args))
-  subprocess.run(args=args, check=check, timeout=timeout)
+  result = subprocess.run(args=args, check=check, timeout=timeout, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
+  logging.info(result.stdout)
+  logging.info(result.stderr)
 
 
 if __name__ == "__main__":
diff --git a/scripts/gha/build_testapps.py b/scripts/gha/build_testapps.py
index 60f4c91a6..2414614f6 100644
--- a/scripts/gha/build_testapps.py
+++ b/scripts/gha/build_testapps.py
@@ -105,7 +105,6 @@
 from integration_testing import unity_finder
 from integration_testing import unity_version
 from integration_testing import xcodebuild
-from print_matrix_configuration import UNITY_SETTINGS
 
 # Used in specifying whether xcodebuild should build for device or simulator
 _DEVICE_REAL = "real"
@@ -488,8 +487,18 @@ def build_testapp(dir_helper, api_config, ios_config, target):
 def patch_android_env(unity_version):
   major_version = int(unity_version.split(".")[0])
   # Set ndk env
-  if UNITY_SETTINGS[str(major_version)][get_desktop_platform()]["ndk"]:
-    url = UNITY_SETTINGS[str(major_version)][get_desktop_platform()]["ndk"]
+  UNITY_SETTINGS = {
+    "2020": {
+      _WINDOWS: "https://dl.google.com/android/repository/android-ndk-r19-windows-x86_64.zip",
+      _MACOS: "https://dl.google.com/android/repository/android-ndk-r19-darwin-x86_64.zip",
+    },
+    "2019": {
+      _WINDOWS: "https://dl.google.com/android/repository/android-ndk-r19-windows-x86_64.zip",
+      _MACOS: "https://dl.google.com/android/repository/android-ndk-r19-darwin-x86_64.zip",
+    },
+  }
+  url = UNITY_SETTINGS[str(major_version)][get_desktop_platform()]
+  if url:
     logging.info("install ndk: %s", url)
     ndk_zip_path = "ndk_zip"
     ndk_path = "ndk"
diff --git a/scripts/gha/print_matrix_configuration.py b/scripts/gha/print_matrix_configuration.py
index 58067c111..34121ab1c 100644
--- a/scripts/gha/print_matrix_configuration.py
+++ b/scripts/gha/print_matrix_configuration.py
@@ -37,7 +37,6 @@
 
 import argparse
 import json
-import logging
 import platform
 import itertools
 
@@ -87,45 +86,6 @@
   },
 }
 
-# Plese use Unity LTS versions: https://unity3d.com/unity/qa/lts-releases
-# To list avaliable packages, install u3d, and use cmd "u3d available -u $unity_version -p"
-# The packages below is valid only if Unity Hub is not installed.
-# TODO(@sunmou): Add Android Setting. e.g. NDK_VERSION
-UNITY_SETTINGS = {
-  "2020": {
-    WINDOWS: {
-      "version": "2020.3.34f1",
-      "packages": {"Default": ["Unity"], ANDROID: ["Android"], IOS: ["Ios"], TVOS: ["appletv"], WINDOWS: None, MACOS: ["Mac-mono"], LINUX: ["Linux-mono"]},
-      "ndk": "https://dl.google.com/android/repository/android-ndk-r19-windows-x86_64.zip"
-    },
-    MACOS: {
-      "version": "2020.3.34f1",
-      "packages": {"Default": ["Unity"], ANDROID: ["Android"], IOS: ["Ios"], TVOS: ["appletv"], WINDOWS: ["Windows-mono"], MACOS: None, LINUX: ["Linux-mono"]},
-      "ndk": "https://dl.google.com/android/repository/android-ndk-r19-darwin-x86_64.zip"
-    },
-    LINUX: {
-      "version": "2020.3.40f1",
-      "packages": {"Default": ["Unity"], ANDROID: ["Android"], IOS: ["Ios"], TVOS: None, WINDOWS: ["Windows-mono"], MACOS: ["Mac-mono"], LINUX: None}
-    }
-  },
-  "2019": {
-    WINDOWS: {
-      "version": "2019.4.39f1",
-      "packages": {"Default": ["Unity"], ANDROID: ["Android"], IOS: ["Ios"], TVOS: ["appletv"], WINDOWS: None, MACOS: ["Mac-mono"], LINUX: ["Linux-mono"]},
-      "ndk": "https://dl.google.com/android/repository/android-ndk-r19-windows-x86_64.zip"
-    },
-    MACOS: {
-      "version": "2019.4.39f1",
-      "packages": {"Default": ["Unity"], ANDROID: ["Android"], IOS: ["Ios"], TVOS: ["appletv"], WINDOWS: ["Windows-mono"], MACOS: None, LINUX: ["Linux-mono"]},
-      "ndk": "https://dl.google.com/android/repository/android-ndk-r19-darwin-x86_64.zip"
-    },
-    LINUX: {
-      "version": "2019.4.40f1",
-      "packages": {"Default": ["Unity"], ANDROID: ["Android"], IOS: ["Ios"], TVOS: ["appletv"], WINDOWS: ["Windows-mono"], MACOS: ["Mac-mono"], LINUX: None}
-    }
-  },
-}
-
 BUILD_CONFIGS = ["Unity Version(s)", "Build OS(s)", "Platform(s)", "Test Device(s)"]
 
 TEST_DEVICES = {
@@ -156,19 +116,6 @@ def get_os():
     return LINUX
 
 
-def get_unity_path(version):
-  """Returns the path to this version of Unity, as generated by U3D."""
-  # These are the path formats assumed by U3D, as documented here:
-  # https://github.com/DragonBox/u3d
-  unity_full_version = UNITY_SETTINGS[version][get_os()]["version"]
-  if platform.system() == "Windows":
-    return "/c/Program Files/Unity_%s" % unity_full_version
-  elif platform.system() == "Darwin":
-    return "/Applications/Unity_%s" % unity_full_version
-  elif platform.system() == 'Linux':
-    return "/opt/unity-editor-%s" % unity_full_version
-
-
 def get_value(workflow, matrix_type, parm_key, config_parms_only=False):
   """ Fetch value from configuration
 
@@ -367,12 +314,6 @@ def _get_test_os(platform, mobile_device_type=""):
 
 def main():
   args = parse_cmdline_args()
-  if args.unity_version:
-    if args.parm_key == "unity_path":
-      print(get_unity_path(args.unity_version))
-    else:
-      print(UNITY_SETTINGS[args.unity_version][get_os()].get(args.parm_key))
-    return 
 
   if args.override:
     # If it is matrix parm, convert CSV string into a list
@@ -406,7 +347,6 @@ def parse_cmdline_args():
   parser.add_argument('-k', '--parm_key', help='Print the value of specified key from matrix or config maps.')
   parser.add_argument('-a', '--auto_diff', metavar='BRANCH', help='Compare with specified base branch to automatically set matrix options')
   parser.add_argument('-o', '--override', help='Override existing value with provided value')
-  parser.add_argument('-u', '--unity_version', help='Get unity setting based on unity major version. Used with "-k $unity_setting -u $unity_major_version"')
   parser.add_argument('-playmode_matrix', action='store_true', help='Generate the playmode matrix for integration_test workflow')
   parser.add_argument('-build_matrix', action='store_true', help='Generate the build matrix for integration_test workflow')
   parser.add_argument('-test_matrix', action='store_true', help='Generate the test matrix for integration_test workflow')