diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
new file mode 100644
index 00000000000000..891ef2b90080e4
--- /dev/null
+++ b/.github/workflows/dotnet.yml
@@ -0,0 +1,26 @@
+name: .NET
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: 5.0.x
+    - name: Restore dependencies
+      run: dotnet restore
+      
+    - name: Build
+      run: make -C src/mono/wasm build-all
+    - name: Test
+      run: make -C src/mono/wasm debugger-tests