diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 00000000..58b4c0e6
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,47 @@
+name: CI
+
+on: [push]
+
+jobs:
+  test-core:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        haxe-version: [4.2.2]
+        node-version: ['14']
+        python-version: ['3.x']
+        test-target: 
+          - KISS_TARGET=cpp
+          - KISS_TARGET=interp
+          - KISS_TARGET=js
+          - KISS_TARGET=nodejs
+          - KISS_TARGET=py
+          - KISS_PROJECT=aoc
+          - KISS_PROJECT=asciilib2
+          - KISS_PROJECT=file-watch
+          - KISS_PROJECT=flixel-ascii-game
+          - KISS_PROJECT=flixel-rpg-tutorial
+          - KISS_PROJECT=kiss-vscode
+          - KISS_PROJECT=nat-archive-tool
+          - KISS_PROJECT=nat-cli
+          - KISS_PROJECT=pdf-salad
+      fail-fast: true
+    runs-on: ${{ matrix.os }}
+    env:
+      CI_OS_NAME: ${{matrix.os}}
+    steps:
+      - uses: actions/checkout@v2
+      # Set up Kiss runtimes:
+      - uses: krdlab/setup-haxe@v1.1.5
+        with:
+          haxe-version: ${{ matrix.haxe-version }}
+      - uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node-version }}
+      - uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - run: haxe -version
+      - run: echo "${{ matrix.test-target }}" >> $GITHUB_ENV
+      - run: ./test.sh
+      
diff --git a/projects/file-watch/test.sh b/projects/file-watch/test.sh
index 206d2a7d..139ab51f 100755
--- a/projects/file-watch/test.sh
+++ b/projects/file-watch/test.sh
@@ -2,7 +2,7 @@
 
 echo "" > test-output.txt
 expected=$'hey\nhey\nhey'
-if [[ $(uname) == *"MINGW"* ]] || [ $TRAVIS_OS_NAME = "windows" ]; then
+if [[ $(uname) == *"MINGW"* ]] || [ $CI_OS_NAME = "windows-latest" ]; then
     expected=$'"hey" \r\n"hey" \r\n"hey"' 
 fi
 
diff --git a/projects/pdf-salad/test.sh b/projects/pdf-salad/test.sh
index 998c0b91..18055a0e 100755
--- a/projects/pdf-salad/test.sh
+++ b/projects/pdf-salad/test.sh
@@ -1,11 +1,11 @@
 #! /bin/bash
 
 # Something is broken in the Node dependencies on Mac, so don't bother.
-if [ "$TRAVIS_OS_NAME" = "osx" ]; then
+if [ "$CI_OS_NAME" = "macos-latest" ]; then
     exit 0
 fi
 
-if [ ! -z "$TRAVIS_OS_NAME" ]; then
+if [ ! -z "$CI_OS_NAME" ]; then
     npm install pdf-lib
     haxelib install hxnodejs
 fi
diff --git a/test-project.sh b/test-project.sh
index d637f7c1..5d36f80d 100755
--- a/test-project.sh
+++ b/test-project.sh
@@ -21,7 +21,7 @@ fi
 if [[ $KISS_PROJECT == *flixel-* ]]
 then
     # If running through Travis, install HaxeFlixel with c++ tooling and 
-    if [ ! -z "$TRAVIS_OS_NAME" ]
+    if [ ! -z "CI_OS_NAME" ]
     then
         haxelib install lime
         haxelib install openfl
diff --git a/test.sh b/test.sh
index 099b0fbc..12441773 100755
--- a/test.sh
+++ b/test.sh
@@ -4,7 +4,7 @@ KISS_TARGET=${KISS_TARGET:-$1}
 KISS_TARGET=${KISS_TARGET:-interp}
 
 # If Travis is running tests, basic dependencies need to be installed
-if [ ! -z "$TRAVIS_OS_NAME" ]
+if [ ! -z "$CI_OS_NAME" ]
 then
     (cd kiss/build-scripts && haxelib install all --always)
     (cd kiss/build-scripts/$KISS_TARGET && haxelib install all --always)