diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c0b621c4c..19d876797 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -29,14 +29,9 @@ jobs:
         sudo apt-get update
         sudo apt-get install \
             ccache \
-            libgtk2.0-0 \
-            libncursesw5 \
-            libsdl-image1.2-dev \
-            libsdl-ttf2.0-dev \
-            libsdl1.2-dev \
+            libsdl2-dev \
             libxml-libxml-perl \
             libxml-libxslt-perl \
-            lua5.3 \
             ninja-build \
             zlib1g-dev
         pip install 'sphinx<4.4.0'
@@ -44,7 +39,7 @@ jobs:
       run: |
         sudo apt-get install gcc-${{ matrix.gcc }} g++-${{ matrix.gcc }}
     - name: Clone DFHack
-      uses: actions/checkout@v1
+      uses: actions/checkout@v3
       with:
         fetch-depth: 0  # unlimited - we need past tags
         submodules: true
@@ -177,7 +172,7 @@ jobs:
       run: |
         pip install 'sphinx'
     - name: Clone DFHack
-      uses: actions/checkout@v1
+      uses: actions/checkout@v3
       with:
         submodules: true
     - name: Build docs
@@ -196,7 +191,7 @@ jobs:
         sudo apt-get update
         sudo apt-get install lua5.3
     - name: Clone DFHack
-      uses: actions/checkout@v1
+      uses: actions/checkout@v3
       with:
         submodules: true
         # don't need tags here
diff --git a/.github/workflows/steam.yml b/.github/workflows/steam.yml
index a67a87b81..f5e1b976a 100644
--- a/.github/workflows/steam.yml
+++ b/.github/workflows/steam.yml
@@ -23,10 +23,23 @@ jobs:
     name: Deploy to Steam
     runs-on: ubuntu-22.04
     steps:
+      - name: Set up Python 3
+        uses: actions/setup-python@v4
+        with:
+          python-version: 3
       - name: Install dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install ccache
+          sudo apt-get install \
+              ccache \
+              libsdl2-dev \
+              libxml-libxml-perl \
+              libxml-libxslt-perl \
+              ninja-build \
+              zlib1g-dev \
+              gcc \
+              g++
+          pip install 'sphinx<4.4.0'
       - name: Clone DFHack
         uses: actions/checkout@v3
         with:
@@ -40,13 +53,43 @@ jobs:
           ref: main
           ssh-key: ${{ secrets.DFHACK_3RDPARTY_TOKEN }}
           path: depends/steam
-      - name: Fetch ccache
+      - name: Fetch linux64 ccache
+        uses: actions/cache@v3
+        with:
+          path: ~/.ccache
+          key: ccache-ubuntu-22.04-gcc-10-${{ github.sha }}
+          restore-keys: |
+            ccache-ubuntu-22.04-gcc-10
+      - name: Fetch win64 ccache
         uses: actions/cache@v3
         with:
           path: build/win64-cross/ccache
           key: ccache-win64-cross-msvc-${{ github.sha }}
           restore-keys: |
             ccache-win64-cross-msvc
+      - name: Set up environment
+        id: env_setup
+        run: |
+          echo "CCACHE_DIR=${HOME}/.ccache" >> $GITHUB_ENV
+      - name: Configure DFHack
+        run: |
+          cmake \
+            -S . \
+            -B build \
+            -G Ninja \
+            -DDFHACK_BUILD_ARCH=64 \
+            -DBUILD_STONESENSE:BOOL=1 \
+            -DCMAKE_C_COMPILER_LAUNCHER=ccache \
+            -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+            -DBUILD_DFLAUNCH:BOOL=1 \
+            -DBUILD_DOCS:BOOL=1 \
+            -DCMAKE_INSTALL_PREFIX=linux64/output
+      - name: Build DFHack
+        run: |
+          ninja -C build install
+          ccache --max-size 50M
+          ccache --cleanup
+          ccache --show-stats
       - name: Cross-compile win64 artifacts
         env:
           CMAKE_EXTRA_ARGS: '-DBUILD_STONESENSE:BOOL=1 -DBUILD_DFLAUNCH:BOOL=1'
@@ -72,4 +115,5 @@ jobs:
           buildDescription: ${{ github.event.inputs.version }}
           rootPath: build
           depot1Path: win64-cross/output
+          depot2Path: linux64/output
           releaseBranch: ${{ github.event.inputs.release_channel }}