diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 00000000..b59006ef
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,342 @@
+name: Release
+
+on:
+  push:
+    tags: ['v*']
+
+permissions:
+  contents: write
+
+jobs:
+  build-linux:
+    name: Build (linux-${{ matrix.arch }})
+    runs-on: ${{ matrix.runner }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - arch: x86-64
+            runner: ubuntu-24.04
+          - arch: arm64
+            runner: ubuntu-24.04-arm
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Cache apt packages
+        uses: actions/cache@v4
+        with:
+          path: /var/cache/apt/archives/*.deb
+          key: apt-${{ matrix.arch }}-${{ hashFiles('.github/workflows/release.yml') }}
+          restore-keys: apt-${{ matrix.arch }}-
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            cmake \
+            build-essential \
+            pkg-config \
+            libsdl2-dev \
+            libglew-dev \
+            libglm-dev \
+            libssl-dev \
+            zlib1g-dev \
+            libvulkan-dev \
+            vulkan-tools \
+            glslc \
+            libavformat-dev \
+            libavcodec-dev \
+            libswscale-dev \
+            libavutil-dev \
+            libunicorn-dev \
+            libx11-dev
+          sudo apt-get install -y libstormlib-dev || true
+
+      - name: Configure
+        run: cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
+
+      - name: Build
+        run: cmake --build build --parallel $(nproc)
+
+      - name: Package
+        run: |
+          TAG="${GITHUB_REF_NAME}"
+          STAGING="wowee-${TAG}-linux-${{ matrix.arch }}"
+          mkdir -p "${STAGING}"
+
+          # Binary
+          cp build/bin/wowee "${STAGING}/"
+
+          # Asset extraction tool (if built — requires StormLib)
+          if [ -f build/bin/asset_extract ]; then
+            cp build/bin/asset_extract "${STAGING}/"
+          fi
+
+          # Extraction scripts and GUI
+          cp extract_assets.sh "${STAGING}/"
+          cp tools/asset_pipeline_gui.py "${STAGING}/"
+
+          # Assets (exclude proprietary music)
+          rsync -a --exclude='Original Music' build/bin/assets/ "${STAGING}/assets/"
+
+          # Data directory (git-tracked files only)
+          git ls-files Data/ | while read -r f; do
+            mkdir -p "${STAGING}/$(dirname "$f")"
+            cp "$f" "${STAGING}/$f"
+          done
+
+          tar czf "${STAGING}.tar.gz" "${STAGING}"
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: wowee-linux-${{ matrix.arch }}
+          path: wowee-*.tar.gz
+          if-no-files-found: error
+
+  build-macos:
+    name: Build (macOS arm64)
+    runs-on: macos-15
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Install dependencies
+        run: |
+          brew install cmake pkg-config sdl2 glew glm openssl@3 zlib ffmpeg unicorn \
+            stormlib vulkan-loader vulkan-headers shaderc dylibbundler || true
+          brew install dylibbundler 2>/dev/null || true
+
+      - name: Configure
+        run: |
+          BREW=$(brew --prefix)
+          export PKG_CONFIG_PATH="$BREW/lib/pkgconfig:$(brew --prefix ffmpeg)/lib/pkgconfig:$(brew --prefix openssl@3)/lib/pkgconfig:$(brew --prefix vulkan-loader)/lib/pkgconfig:$(brew --prefix shaderc)/lib/pkgconfig"
+          cmake -S . -B build \
+            -DCMAKE_BUILD_TYPE=Release \
+            -DCMAKE_PREFIX_PATH="$BREW" \
+            -DOPENSSL_ROOT_DIR="$(brew --prefix openssl@3)"
+
+      - name: Build
+        run: cmake --build build --parallel $(sysctl -n hw.logicalcpu)
+
+      - name: Create .app bundle
+        run: |
+          TAG="${GITHUB_REF_NAME}"
+          mkdir -p Wowee.app/Contents/{MacOS,Frameworks,Resources}
+
+          # Wrapper launch script
+          printf '#!/bin/bash\ncd "$(dirname "$0")"\nexec ./wowee_bin "$@"\n' \
+            > Wowee.app/Contents/MacOS/wowee
+          chmod +x Wowee.app/Contents/MacOS/wowee
+
+          # Actual binary
+          cp build/bin/wowee Wowee.app/Contents/MacOS/wowee_bin
+
+          # Asset extraction tool (if built — requires StormLib)
+          if [ -f build/bin/asset_extract ]; then
+            cp build/bin/asset_extract Wowee.app/Contents/MacOS/
+          fi
+
+          # Extraction scripts and GUI
+          cp extract_assets.sh Wowee.app/Contents/MacOS/
+          cp tools/asset_pipeline_gui.py Wowee.app/Contents/MacOS/
+
+          # Assets (exclude proprietary music)
+          rsync -a --exclude='Original Music' build/bin/assets/ \
+            Wowee.app/Contents/MacOS/assets/
+
+          # Data directory (git-tracked files only)
+          git ls-files Data/ | while read -r f; do
+            mkdir -p "Wowee.app/Contents/MacOS/$(dirname "$f")"
+            cp "$f" "Wowee.app/Contents/MacOS/$f"
+          done
+
+          # Bundle dylibs
+          if command -v dylibbundler &>/dev/null; then
+            dylibbundler -od -b \
+              -x Wowee.app/Contents/MacOS/wowee_bin \
+              -d Wowee.app/Contents/Frameworks/ \
+              -p @executable_path/../Frameworks/
+            if [ -f Wowee.app/Contents/MacOS/asset_extract ]; then
+              dylibbundler -od -b \
+                -x Wowee.app/Contents/MacOS/asset_extract \
+                -d Wowee.app/Contents/Frameworks/ \
+                -p @executable_path/../Frameworks/
+            fi
+          fi
+
+          # Info.plist
+          cat > Wowee.app/Contents/Info.plist << EOF
+          <?xml version="1.0" encoding="UTF-8"?>
+          <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
+            "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+          <plist version="1.0"><dict>
+            <key>CFBundleExecutable</key><string>wowee</string>
+            <key>CFBundleIdentifier</key><string>com.wowee.app</string>
+            <key>CFBundleName</key><string>Wowee</string>
+            <key>CFBundleVersion</key><string>${TAG}</string>
+            <key>CFBundleShortVersionString</key><string>${TAG}</string>
+            <key>CFBundlePackageType</key><string>APPL</string>
+          </dict></plist>
+          EOF
+
+          # Ad-hoc codesign
+          codesign --force --deep --sign - Wowee.app
+
+      - name: Create DMG
+        run: |
+          TAG="${GITHUB_REF_NAME}"
+          hdiutil create -volname Wowee -srcfolder Wowee.app -ov -format UDZO \
+            "wowee-${TAG}-macos-arm64.dmg"
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: wowee-macos-arm64
+          path: wowee-*.dmg
+          if-no-files-found: error
+
+  build-windows:
+    name: Build (windows-${{ matrix.arch }})
+    runs-on: ${{ matrix.runner }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - arch: x86-64
+            runner: windows-latest
+            msystem: MINGW64
+            prefix: mingw-w64-x86_64
+          - arch: arm64
+            runner: windows-11-arm
+            msystem: CLANGARM64
+            prefix: mingw-w64-clang-aarch64
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Set up MSYS2
+        uses: msys2/setup-msys2@v2
+        with:
+          msystem: ${{ matrix.msystem }}
+          update: ${{ matrix.arch == 'arm64' }}
+          install: >-
+            ${{ matrix.prefix }}-cmake
+            ${{ matrix.arch == 'x86-64' && format('{0}-gcc', matrix.prefix) || format('{0}-clang', matrix.prefix) }}
+            ${{ matrix.prefix }}-ninja
+            ${{ matrix.prefix }}-pkgconf
+            ${{ matrix.prefix }}-SDL2
+            ${{ matrix.prefix }}-glew
+            ${{ matrix.prefix }}-glm
+            ${{ matrix.prefix }}-openssl
+            ${{ matrix.prefix }}-zlib
+            ${{ matrix.prefix }}-ffmpeg
+            ${{ matrix.prefix }}-unicorn
+            ${{ matrix.prefix }}-vulkan-loader
+            ${{ matrix.prefix }}-vulkan-headers
+            ${{ matrix.prefix }}-shaderc
+            git
+
+      - name: Install optional packages
+        shell: msys2 {0}
+        run: pacman -S --noconfirm --needed ${{ matrix.prefix }}-stormlib || true
+
+      - name: Configure
+        shell: msys2 {0}
+        run: cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Release
+
+      - name: Build
+        shell: msys2 {0}
+        run: cmake --build build --parallel $(nproc)
+
+      - name: Bundle DLLs
+        shell: msys2 {0}
+        run: |
+          for exe in build/bin/wowee.exe build/bin/asset_extract.exe; do
+            [ -f "$exe" ] || continue
+            ldd "$exe" \
+              | awk '/=> \// { print $3 }' \
+              | grep -iv '^/c/Windows' \
+              | xargs -I{} sh -c 'cp -n "{}" build/bin/ 2>/dev/null || true'
+          done
+
+      - name: Package
+        shell: msys2 {0}
+        run: |
+          TAG="${GITHUB_REF_NAME}"
+          STAGING="wowee-${TAG}-windows-${{ matrix.arch }}"
+          mkdir -p "${STAGING}"
+
+          # Binary and DLLs
+          cp build/bin/wowee.exe "${STAGING}/"
+          cp build/bin/*.dll "${STAGING}/" 2>/dev/null || true
+
+          # Asset extraction tool (if built — requires StormLib)
+          if [ -f build/bin/asset_extract.exe ]; then
+            cp build/bin/asset_extract.exe "${STAGING}/"
+          fi
+
+          # Extraction scripts and GUI
+          cp extract_assets.ps1 "${STAGING}/"
+          cp extract_assets.bat "${STAGING}/"
+          cp tools/asset_pipeline_gui.py "${STAGING}/"
+
+          # Assets (exclude proprietary music)
+          rsync -a --exclude='Original Music' build/bin/assets/ "${STAGING}/assets/" || \
+            cp -r build/bin/assets "${STAGING}/assets"
+
+          # Data directory (git-tracked files only)
+          git ls-files Data/ | while read -r f; do
+            mkdir -p "${STAGING}/$(dirname "$f")"
+            cp "$f" "${STAGING}/$f"
+          done
+
+          # Create ZIP using 7z (available in MSYS2)
+          7z a -tzip "${STAGING}.zip" "${STAGING}" || \
+            (cd "${STAGING}" && zip -r "../${STAGING}.zip" .)
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: wowee-windows-${{ matrix.arch }}
+          path: wowee-*.zip
+          if-no-files-found: error
+
+  release:
+    name: Create Release
+    needs: [build-linux, build-macos, build-windows]
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: artifacts/
+
+      - name: Create GitHub Release
+        env:
+          GH_TOKEN: ${{ github.token }}
+          GH_REPO: ${{ github.repository }}
+        run: |
+          TAG="${GITHUB_REF_NAME}"
+
+          # Collect all release files
+          FILES=()
+          for f in artifacts/*/*; do
+            FILES+=("$f")
+          done
+
+          gh release create "${TAG}" \
+            --title "Wowee ${TAG}" \
+            --generate-notes \
+            "${FILES[@]}"