diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..0e52c0a
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,75 @@
+name: Continuous Integration
+on: [push, pull_request]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read # to fetch code (actions/checkout)
+
+jobs:
+  build-only-desktop:
+    name: Build only (Desktop)
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install .NET 8.0.x
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: "8.0.x"
+
+      - name: Build
+        run: dotnet build -c Debug SDL3-CS.Desktop.slnf
+
+  build-only-android:
+    name: Build only (Android)
+    runs-on: windows-latest
+    timeout-minutes: 60
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup JDK 11
+        uses: actions/setup-java@v4
+        with:
+          distribution: microsoft
+          java-version: 11
+
+      - name: Install .NET 8.0.x
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: "8.0.x"
+
+      - name: Install .NET workloads
+        run: dotnet workload install android
+
+      - name: Build
+        run: dotnet build -c Debug SDL3-CS.Android.slnf
+
+  build-only-ios:
+    name: Build only (iOS)
+    runs-on: macos-15
+    timeout-minutes: 60
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install .NET 8.0.x
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: "8.0.x"
+
+      - name: Install .NET Workloads
+        run: dotnet workload install ios
+
+      # https://github.com/dotnet/macios/issues/19157
+      # https://github.com/actions/runner-images/issues/12758
+      - name: Use Xcode 16.4
+        run: sudo xcode-select -switch /Applications/Xcode_16.4.app
+
+      - name: Build
+        run: dotnet build -c Debug SDL3-CS.iOS.slnf