diff --git a/.github/workflows/appimage.yml b/.github/workflows/appimage.yml
new file mode 100644
index 0000000000..2707b60db5
--- /dev/null
+++ b/.github/workflows/appimage.yml
@@ -0,0 +1,36 @@
+name: AppImage Continuous
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        game: [{id: wargus, name: Wargus}]
+    name: Linux x64_64 (Continuous)
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build game ${{ matrix.game.id }}
+        run: bash -x ./tools/build_appimage.sh ${{ matrix.game.id }} ${{ matrix.game.name }}
+      - name: Create continuous release
+        uses: ncipollo/release-action@v1
+        with:
+          allowUpdates: true
+          artifacts: "*.AppImage*"
+          body: |
+            :heavy_check_mark: AppImage built from latest commit ([${{ github.sha }}](https://github.com/${{ github.repository }}/commit/${{ github.sha }})).
+            :scroll: Build log: https://github.com/${{ github.repository }}/commit/${{ github.sha }}/checks?check_suite_id=${{ github.run_id }}
+          commit: ${{ github.sha }}
+          draft: false
+          name: Continuous appimage builds
+          prerelease: true
+          removeArtifacts: false
+          replacesArtifacts: true
+          skipIfReleaseExists: false
+          tag: continuous
+          token: "${{ secrets.GITHUB_TOKEN }}"
diff --git a/gameheaders/stratagus-game-launcher.h b/gameheaders/stratagus-game-launcher.h
index 836e0cf6d9..99a717eaab 100644
--- a/gameheaders/stratagus-game-launcher.h
+++ b/gameheaders/stratagus-game-launcher.h
@@ -197,17 +197,33 @@ static void SetUserDataPath(char* data_path) {
 		}
 	}
 	SHGetFolderPathA(NULL, CSIDL_PERSONAL|CSIDL_FLAG_CREATE, NULL, 0, data_path);
-	// strcpy(data_path, getenv("APPDATA"));
-#else
-	strcpy(data_path, getenv("HOME"));
-#endif
-	int datalen = strlen(data_path);
-#if defined(WIN32)
+	if (!data_path[0]) {
+		strcpy(data_path, getenv("APPDATA"));
+	}
 	strcat(data_path, "\\Stratagus\\");
-#elif defined(USE_MAC)
-	strcat(data_path, "/Library/Stratagus/");
 #else
-	strcat(data_path, "/.stratagus/");
+	std::string appimage = std::string(getenv("APPIMAGE"));
+	if (!appimage.empty() && fs::exists(fs::path(appimage))) {
+		if (fs::exists(fs::path(appimage + ".data"))) {
+			strcpy(data_path, (appimage + ".data/stratagus").c_str());
+			return;
+		}
+	}
+	char *dataDir = getenv("XDG_DATA_DIR");
+	if (dataDir) {
+		strcpy(data_path, dataDir);
+		strcat(data_path, "/stratagus/");
+	} else {
+		dataDir = getenv("HOME");
+		if (dataDir) {
+			strcpy(data_path, dataDir);
+#ifdef USE_MAC
+			strcat(data_path, "/Library/Stratagus/");
+#else
+			strcat(data_path, "/.local/share/stratagus/");
+#endif
+		}
+	}
 #endif
 	strcat(data_path, "data." GAME_NAME);
 }
diff --git a/src/stratagus/parameters.cpp b/src/stratagus/parameters.cpp
index f9066422c7..bb99e2adfc 100644
--- a/src/stratagus/parameters.cpp
+++ b/src/stratagus/parameters.cpp
@@ -66,24 +66,26 @@ void Parameters::SetDefaultUserDirectory(bool noPortable)
 	}
 	char data_path[4096] = {'\0'};
 	SHGetFolderPathA(NULL, CSIDL_PERSONAL|CSIDL_FLAG_CREATE, NULL, 0, data_path);
-	userDirectory = data_path;
-	// userDirectory = getenv("APPDATA");
-#else
-	userDirectory = getenv("HOME");
-#endif
-
-	if (!userDirectory.empty()) {
-		userDirectory += "/";
+	if (data_path[0]) {
+		userDirectory = std::string(data_path) + "/Stratagus";
+	} else if (getenv("APPDATA")) {
+		userDirectory = std::string(getenv("APPDATA")) + "/Stratagus";
 	}
-
-#ifdef USE_GAME_DIR
-#elif USE_WIN32
-	userDirectory += "Stratagus";
-#elif defined(USE_MAC)
-	userDirectory += "Library/Stratagus";
+#else // USE_GAME_DIR
+	char *configDir = getenv("XDG_CONFIG_DIR");
+	if (configDir) {
+		userDirectory = std::string(configDir) + "/stratagus";
+	} else {
+		configDir = getenv("HOME");
+		if (configDir) {
+#ifdef USE_MAC
+			userDirectory = std::string(configDir) + "/Library/Stratagus";
 #else
-	userDirectory += ".stratagus";
-#endif
+			userDirectory = std::string(configDir) + "/.config/stratagus";
+#endif // USE_MAC
+		}
+	}
+#endif // USE_GAME_DIR
 }
 
 static std::string GetLocalPlayerNameFromEnv()
diff --git a/tools/build_appimage.sh b/tools/build_appimage.sh
new file mode 100644
index 0000000000..4100047fc9
--- /dev/null
+++ b/tools/build_appimage.sh
@@ -0,0 +1,137 @@
+#!/bin/bash
+
+# Tested with 
+#   appimagecrafters/appimage-builder
+# and
+#   centos:centos-7
+
+# config
+if [ -z "$GAME_ID" ]; then
+    if [ $# -gt 0 ]; then
+        export GAME_ID="$1"
+    else
+        echo "Need GAME_ID set or passed as first argument"
+        exit 1
+    fi
+fi
+if [ -z "$GAME_NAME" ]; then
+    if [ $# -gt 1 ]; then
+        export GAME_NAME="$2"
+    else
+        echo "Need GAME_NAME set or passed as second argument"
+        exit 1
+    fi
+fi
+if [ -z "$GAME_VERSION" ]; then
+    if [ $# -gt 2 ]; then
+        export GAME_VERSION="$3"
+    else
+        export GAME_VERSION="$(head -1 debian/changelog | cut -f2 -d' ' | sed 's/(//' | sed 's/)//')"
+    fi
+fi
+export GAME_ARCH=$(uname -m)
+
+CENTOS=`which yum || true`
+if [ -n "$CENTOS" ]; then
+    # centos (>= 7) build tools
+    yum install -yy centos-release-scl && yum install -yy git devtoolset-7-toolchain
+    yum install -yy zlib-devel file
+    scl enable devtoolset-7 bash
+    # centos SDL dependencies
+    yum install -yy libX11-devel libXext-devel libXrandr-devel libXi-devel libXfixes-devel libXcursor-devel
+    yum install -yy pulseaudio-libs-devel
+    yum install -yy mesa-libGL-devel
+    yum install -yy wayland-devel
+else
+    # ubuntu (>= 18.04) build tools
+    sudo apt-get update && apt-get install -yy git build-essential
+    sudo apt-get install -yy zlib1g-dev file
+    # ubuntu SDL dependencies
+    sudo apt-get install -yy libx11-dev libxext-dev libxrandr-dev libxi-dev libxfixes-dev libxcursor-dev
+    sudo apt-get install -yy libpulse-dev
+    sudo apt-get install -yy libgl1-mesa-dev libgles2-mesa-dev
+    sudo apt-get install -yy libwayland-dev
+fi
+
+if [ -n "$CENTOS" ]; then
+    # cmake
+    curl -L -O https://cmake.org/files/v3.20/cmake-3.20.0.tar.gz
+    tar zxf cmake-3.20.0.tar.gz
+    pushd cmake-3.20.0
+        sed -i 's/cmake_options="-DCMAKE_BOOTSTRAP=1"/cmake_options="-DCMAKE_BOOTSTRAP=1 -DCMAKE_USE_OPENSSL=OFF"/' bootstrap
+        ./bootstrap --prefix=/usr/local
+        make -j$(nproc)
+        make install
+        popd
+fi
+
+# git clone --depth 1 https://github.com/Wargus/stratagus
+git clone --depth 1 https://github.com/Wargus/${GAME_ID}
+
+# pushd stratagus
+    git submodule update --init --recursive
+    mkdir build
+    pushd build
+        cmake ..                                                        \
+            -DBUILD_VENDORED_LUA=ON                                     \
+            -DBUILD_VENDORED_SDL=ON                                     \
+            -DBUILD_VENDORED_MEDIA_LIBS=ON                              \
+            -DCMAKE_BUILD_TYPE=Release                                  \
+            -DCMAKE_INSTALL_PREFIX=/usr                                 \
+            -DGAMEDIR=/usr/bin
+        make -j$(nproc) install DESTDIR=../../AppDir
+        popd
+#    popd
+pushd ${GAME_ID}
+    git submodule update --init --recursive
+    mkdir build
+    pushd build
+        cmake ..                                                        \
+            -DENABLE_VENDORED_LIBS=ON                                   \
+            -DCMAKE_BUILD_TYPE=Release                                  \
+            -DSTRATAGUS_INCLUDE_DIR=$PWD/../../gameheaders              \
+            -DSTRATAGUS=stratagus                                       \
+            -DCMAKE_INSTALL_PREFIX=/usr                                 \
+            -DDATA_PATH=../../share/games/stratagus/${GAME_ID}/         \
+            -DGAMEDIR=/usr/bin                                          \
+            -DICONDIR=/usr/share/icons/default/64x64/                   \
+            -DGAMEDIRABS=""
+        make -j$(nproc) install DESTDIR=../../AppDir
+        popd
+    popd
+
+if [ -n "$CENTOS" ]; then
+    # using linuxdeploy
+    echo '#!/bin/sh' > AppDir/AppRun
+    echo -n 'exec $APPDIR/usr/bin/' >> AppDir/AppRun
+    echo -n "${GAME_ID}" >> AppDir/AppRun
+    echo -n ' --argv0=$APPDIR/usr/bin/' >> AppDir/AppRun
+    echo -n "${GAME_ID}" >> AppDir/AppRun
+    echo ' $@' >> AppDir/AppRun
+    chmod +x AppDir/AppRun
+    cat AppDir/AppRun
+    curl -L -O "https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage"
+    chmod +x linuxdeploy-x86_64.AppImage
+    ./linuxdeploy-x86_64.AppImage --appimage-extract-and-run --appdir AppDir --output appimage
+else
+    # using appimage-builder
+    echo    "version: 1" > appimagebuilder.yaml
+    echo    "AppDir:" >> appimagebuilder.yaml
+    echo    "    path: ./AppDir" >> appimagebuilder.yaml
+    echo    "    app_info:" >> appimagebuilder.yaml
+    echo    "        id: com.stratagus.${GAME_ID}" >> appimagebuilder.yaml
+    echo    "        name: '${GAME_NAME}'" >> appimagebuilder.yaml
+    echo    "        icon: '${GAME_ID}'" >> appimagebuilder.yaml
+    echo    "        version: '${GAME_VERSION}'" >> appimagebuilder.yaml
+    echo    "        exec: usr/bin/${GAME_ID}" >> appimagebuilder.yaml
+    echo    "        exec_args: '\"--argv0=\$APPDIR/usr/bin/${GAME_ID}\" \$@'" >> appimagebuilder.yaml
+    echo    "AppImage:" >> appimagebuilder.yaml
+    echo    "    arch: '${GAME_ARCH}'" >> appimagebuilder.yaml
+    APPIMAGEBUILDER=`which appimage-builder || true`
+    if [ -z "$APPIMAGEBUILDER" ]; then
+        wget https://github.com/AppImageCrafters/appimage-builder/releases/download/v1.1.0/appimage-builder-1.1.0-x86_64.AppImage
+        chmod +x appimage-builder-1.1.0-x86_64.AppImage
+        APPIMAGEBUILDER=$(pwd)/appimage-builder-1.1.0-x86_64.AppImage
+    fi
+    $APPIMAGEBUILDER --recipe appimagebuilder.yaml
+fi