diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..bff9acf
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,64 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  test-core:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        haxe-version: [4.3.0]
+        node-version: ['14']
+        python-version: ['3.x']
+        test-target: 
+          # HAXE TARGETS
+          - cpp
+          - cs
+          - interp
+          - js
+          - nodejs
+          - py
+    runs-on: ${{ matrix.os }}
+    env:
+      CI_OS_NAME: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v3
+      # Set up Kiss runtimes:
+
+      # nodejs
+      - uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+        if: test-target == 'nodejs'
+
+      # lix
+      - uses: kiss-lang/setup-lix@main
+        with:
+          lix-version: 15.12.0
+
+      # python
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+        if: test-target == 'py'
+
+      # mono
+      - run: brew install mono || brew link --overwrite mono
+        if: matrix.os == 'macos-latest' && test-target == 'cs'
+      - run: choco install mono
+        if: matrix.os == 'windows-latest' && test-target == 'cs'
+      - run: |
+          # instructions for ubuntu 20.04 from here: https://www.mono-project.com/download/stable/#download-lin
+          sudo apt install gnupg ca-certificates
+          sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
+          echo "deb https://download.mono-project.com/repo/ubuntu stable-focal main" | sudo tee /etc/apt/sources.list.d/mono-official-stable.list
+          sudo apt update
+          sudo apt install mono-devel
+        if: matrix.os == 'ubuntu-latest' && test-target == 'cs'
+
+      # run target test:
+      - run: echo "KISS_TARGET=${{ matrix.test-target }}" >> $GITHUB_ENV
+      - run: ./test.sh
+        shell: bash
+