diff --git a/.github/workflows/windows-x64.yaml b/.github/workflows/windows-x64.yaml
new file mode 100644
index 0000000..4e99704
--- /dev/null
+++ b/.github/workflows/windows-x64.yaml
@@ -0,0 +1,72 @@
+name: windows-x64
+
+on:
+  push:
+    branches:
+      - master
+      - alpha
+      - preflight
+
+  pull_request:
+    branches:
+      - master
+      - alpha
+      - preflight
+
+  workflow_dispatch:
+
+concurrency:
+  group: windows-x64-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  windows_x64:
+    name: Windows x64
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-latest]
+        build_type: [Release, Debug]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.8"
+
+      - name: Install Python dependencies
+        shell: cmd
+        run: |
+          pip install ninja
+
+      - name: Show ninja help
+        shell: bash
+        run: |
+          ninja --help || true
+
+      - name: CMake version
+        shell: cmd
+        run: |
+          cmake --version
+          cmake --help
+
+      - name: Configure CMake
+        shell: cmd
+        run: |
+          cmake --version
+
+          mkdir build
+          cd build
+          cmake -G Ninja -D CMAKE_BUILD_TYPE=${{ matrix.build_type }} -DCMAKE_INSTALL_PREFIX=./install ..
+
+      - name: Build openfst for Windows x64
+        shell: cmd
+        run: |
+          cd build
+          cmake --build . --config Release -- -j 6
+          cmake --build . --config Release --target install -- -j 6