diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
new file mode 100644
index 0000000..b345525
--- /dev/null
+++ b/.github/workflows/android.yml
@@ -0,0 +1,28 @@
+name: Android Build
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Install Deps
+      run: sudo apt install ninja-build
+
+    - name: set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+
+    - name: Build
+      run: |
+        cd android
+        ./gradlew assembleRelease
+
+    - name: Upload artifacts
+      uses: actions/upload-artifact@v1
+      with:
+        name: xsystem35-release-unsigned-apk
+        path: android/app/build/outputs/apk/release/app-release-unsigned.apk
diff --git a/.github/workflows/emscripten.yml b/.github/workflows/emscripten.yml
new file mode 100644
index 0000000..d101ceb
--- /dev/null
+++ b/.github/workflows/emscripten.yml
@@ -0,0 +1,51 @@
+name: Emscripten Build
+on: [push]
+
+env:
+  emscripten-version: 1.39.8
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+
+    - uses: actions/checkout@v2
+
+    - name: Cache emsdk
+      uses: actions/cache@v1
+      id: cache
+      with:
+        path: emsdk-cache
+        key: ${{ runner.os }}-emsdk-${{ env.emscripten-version }}
+
+    - name: Cache .emscripten_cache
+      uses: actions/cache@v1
+      with:
+        path: emscripten-cache
+        key: emscripten-cache-${{ env.emscripten-version }}
+
+    - name: Setup Emscripten toolchain
+      uses: mymindstorm/setup-emsdk@v3
+      with:
+        version: ${{ env.emscripten-version }}
+        actions-cache-folder: emsdk-cache
+        no-cache: true
+
+    - name: Build
+      env:
+        EM_CACHE: ${{ github.workspace }}/emscripten-cache/cache
+        EM_PORTS: ${{ github.workspace }}/emscripten-cache/ports
+      run: |
+        mkdir -p emscripten-cache
+        mkdir -p out/wasm
+        cd out/wasm
+        emcmake cmake -DCMAKE_BUILD_TYPE=MinSizeRel ../../
+        make
+        mkdir xsystem35
+        mv src/xsystem35.* xsystem35/
+
+    - name: Upload artifacts
+      uses: actions/upload-artifact@v1
+      with:
+        name: xsystem35-wasm
+        path: out/wasm/xsystem35
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
new file mode 100644
index 0000000..94609bf
--- /dev/null
+++ b/.github/workflows/linux.yml
@@ -0,0 +1,23 @@
+name: Linux Build
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Install Deps
+      run: sudo apt install libsdl2-dev libsdl2-ttf-dev libsdl2-mixer-dev
+
+    - name: Build
+      run: |
+        mkdir -p out/debug
+        cd out/debug
+        cmake -DCMAKE_BUILD_TYPE=Debug ../../
+        make
+
+    - name: Test
+      run: ctest
+      working-directory: out/debug