diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
new file mode 100644
index 000000000..64c8c5577
--- /dev/null
+++ b/.github/workflows/linux.yml
@@ -0,0 +1,68 @@
+name: Testbuild for Linux
+run-name: testbuild_linux
+on:
+  push:
+    branches:
+      - 'master'
+  pull_request:
+    types:
+      - edited
+      - opened
+      - synchronize
+concurrency:
+  # Cancel concurrent workflows for the same PR or commit hash.
+  group: ${{github.workflow}}-${{github.event_name == 'pull_request' && github.head_ref || github.sha}}
+  cancel-in-progress: true
+jobs:
+  build_ubuntu_x86_64:
+    runs-on: ubuntu-22.04
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - env: ubuntu
+    steps:
+    - name: Install build dependencies
+      run: |
+        sudo apt update
+        sudo apt install libgl1-mesa-dev libsdl2-dev libopenal-dev libcurl4-openssl-dev cmake ninja-build
+    - name: Check out repository code
+      uses: actions/checkout@v4
+    - name: Build
+      run: |
+        mkdir build
+        cd build
+        # -DFORCE_COLORED_OUTPUT=ON ? didn't seem to work, or at least not visible on website
+        cmake -G Ninja -DDEDICATED=ON ../neo/
+        ninja
+    - name: Create testbuild package
+      run: |
+        # Create release directory tree
+        export PKGDIR="dhewm3-linux-$(git rev-parse --short HEAD)"
+        echo "pkgname=$PKGDIR" >> $GITHUB_ENV
+        mkdir -p publish/$PKGDIR/base
+        mkdir publish/$PKGDIR/d3xp
+        # Copy release assets
+        cd build
+        cp dhewm3 dhewm3ded base.so d3xp.so ../publish/$PKGDIR/
+        cd ..
+        # Copy misc assets
+        cp base/gamepad.cfg publish/$PKGDIR/base/
+        cp base/gamepad-d3xp.cfg publish/$PKGDIR/d3xp/
+        cp COPYING.txt publish/$PKGDIR/
+        # TODO: prepend to README that executables must be set executable? (and maybe commit, build, arch etc)
+        echo "dhewm3 for 64bit (amd64 aka x86_64 aka x64) Linux, built $(date)" > publish/$PKGDIR/README.txt
+        echo -e "from ${{ github.ref_name }} commit ${{ github.sha }}\n" >> publish/$PKGDIR/README.txt
+        echo "!!! Note that you must set dhewm3(ded) executable !!!" >> publish/$PKGDIR/README.txt
+        echo "! In a Terminal, in this directory, run:" >> publish/$PKGDIR/README.txt
+        echo "  chmod 755 dhewm3 dhewm3ded" >> publish/$PKGDIR/README.txt
+        echo -e "(this is because of limitations in Githubs Workflow Actions)\n" >> publish/$PKGDIR/README.txt
+        cat README.md >> publish/$PKGDIR/README.txt
+        cp Changelog.md publish/$PKGDIR/Changelog.txt
+        cp Configuration.md publish/$PKGDIR/Configuration.txt
+    - name: Upload testbuild package
+      uses: actions/upload-artifact@v4
+      with:
+        name: ${{ env.pkgname }}
+        path: publish/
+        if-no-files-found: error
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
new file mode 100644
index 000000000..50f90337c
--- /dev/null
+++ b/.github/workflows/macos.yml
@@ -0,0 +1,63 @@
+name: Testbuild for MacOS
+run-name: testbuild_macos
+on:
+  push:
+    branches:
+      - 'master'
+  pull_request:
+    types:
+      - edited
+      - opened
+      - synchronize
+concurrency:
+  # Cancel concurrent workflows for the same PR or commit hash.
+  group: ${{github.workflow}}-${{github.event_name == 'pull_request' && github.head_ref || github.sha}}
+  cancel-in-progress: true
+jobs:
+  build_macos_aarch64:
+    runs-on: macos-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - env: macos
+    steps:
+    - name: Install build dependencies
+      run: |
+        brew update
+        brew install sdl2 openal-soft
+        # not installing make and cmake, cmake is installed by default, make doesn't seem to be needed
+        # when using cmake --build
+    - name: Check out repository code
+      uses: actions/checkout@v4
+    - name: Build
+      run: |
+        mkdir build
+        # Note: not building dedicated server because it's not supported on Macs
+        cmake -DOPENAL_LIBRARY="/opt/homebrew/opt/openal-soft/lib/libopenal.dylib" -DOPENAL_INCLUDE_DIR="/opt/homebrew/opt/openal-soft/include" -S neo/ -B build
+        cmake --build build
+    - name: Create testbuild package
+      run: |
+        # Create release directory tree
+        export PKGDIR="dhewm3-macos-$(git rev-parse --short HEAD)"
+        echo "pkgname=$PKGDIR" >> $GITHUB_ENV
+        mkdir -p publish/$PKGDIR/base
+        mkdir publish/$PKGDIR/d3xp
+        # Copy release assets
+        cd build
+        cp -r dhewm3.app ../publish/$PKGDIR/
+        cp base.dylib d3xp.dylib ../publish/$PKGDIR/
+        cd ..
+        # Copy misc assets
+        cp base/gamepad.cfg publish/$PKGDIR/base/
+        cp base/gamepad-d3xp.cfg publish/$PKGDIR/d3xp/
+        cp COPYING.txt publish/$PKGDIR/
+        cp README.md publish/$PKGDIR/README.txt
+        cp Changelog.md publish/$PKGDIR/Changelog.txt
+        cp Configuration.md publish/$PKGDIR/Configuration.txt
+    - name: Upload testbuild package
+      uses: actions/upload-artifact@v4
+      with:
+        name: ${{ env.pkgname }}
+        path: publish/
+        if-no-files-found: error
diff --git a/.github/workflows/win_msvc.yml b/.github/workflows/win_msvc.yml
new file mode 100644
index 000000000..b394a5a43
--- /dev/null
+++ b/.github/workflows/win_msvc.yml
@@ -0,0 +1,159 @@
+name: Testbuild for x86 and x86_64 Windows
+run-name: testbuild_windows
+on:
+  push:
+    branches:
+      - 'master'
+  pull_request:
+    types:
+      - edited
+      - opened
+      - synchronize
+concurrency:
+  # Cancel concurrent workflows for the same PR or commit hash.
+  group: ${{github.workflow}}-${{github.event_name == 'pull_request' && github.head_ref || github.sha}}
+  cancel-in-progress: true
+jobs:
+  build_win_x86_msvc:
+    runs-on: windows-latest
+    defaults:
+      run:
+        # use git bash for for all steps (unless specified otherwise per step)
+        shell: bash
+    strategy:
+      fail-fast: false
+    steps:
+    - name: Install build dependencies
+      run: |
+        # Download and extract dhewm3-libs
+        #echo $PWD # /d/a/dhewm3/dhewm3
+        # as the repo will be cloned into the directory we're currently in (O_o)
+        # go one directory up to D:\a\dhewm3\ and put the dhewm3libs there
+        cd ..
+        # https://github.com/dhewm/dhewm3-libs/archive/refs/heads/master.zip
+        # for some reason the following downloads an empty file, so use the other URL I got from
+        # "Copy Download Link" in Firefox (after downloading the file there) instead
+        #curl -o dhewm3libs.zip https://github.com/dhewm/dhewm3-libs/archive/refs/heads/master.zip
+        curl -o dhewm3libs.zip https://codeload.github.com/dhewm/dhewm3-libs/zip/refs/heads/master
+        # only unpack the stuff needed (no x86_64 stuff, no docs from share/)
+        unzip dhewm3libs.zip "dhewm3-libs-master/i686-w64-mingw32/**" -x "dhewm3-libs-master/i686-w64-mingw32/share/**"
+    - name: Check out repository code
+      uses: actions/checkout@v4
+    - name: Build
+      run: |
+        # build with cmake and visual studio
+        #echo $PWD # /d/a/dhewm3/dhewm3
+        # NOTE: not setting -G "Visual Studio 17 2022" so it just uses the default VS version it can find
+        cmake -A Win32 -DDHEWM3LIBS="../dhewm3-libs-master/i686-w64-mingw32/" -DDEDICATED=ON -DTOOLS=ON -S neo/ -B build
+        time cmake --build build/ --config RelWithDebInfo
+    - name: Create testbuild package
+      run: |
+        # Create release directory tree
+        export PKGDIR="dhewm3-win32-$(git rev-parse --short HEAD)"
+        echo "pkgname=$PKGDIR" >> $GITHUB_ENV
+        mkdir -p publish/$PKGDIR/base
+        mkdir publish/$PKGDIR/d3xp
+        # debug symbols (*.pdb) are put in a separate zip
+        mkdir -p debug-syms/$PKGDIR
+        # Copy release assets
+        cd build/RelWithDebInfo
+        cp dhewm3.exe dhewm3ded.exe base.dll d3xp.dll ../../publish/$PKGDIR/
+        cp -r *.pdb ../../debug-syms/$PKGDIR/
+        cd ../..
+        # Copy misc assets
+        cp base/gamepad.cfg publish/$PKGDIR/base/
+        cp base/gamepad-d3xp.cfg publish/$PKGDIR/d3xp/
+        cp COPYING.txt publish/$PKGDIR/
+        echo "dhewm3 for 32bit (x86) Windows, built $(date)" > publish/$PKGDIR/README.txt
+        echo -e "from ${{ github.ref_name }} commit ${{ github.sha }}\n" >> publish/$PKGDIR/README.txt
+        cat README.md >> publish/$PKGDIR/README.txt
+        cp Changelog.md publish/$PKGDIR/Changelog.txt
+        cp Configuration.md publish/$PKGDIR/Configuration.txt
+        # copy runtime libraries (SDL, OpenAL, cURL)
+        cd ../dhewm3-libs-master/i686-w64-mingw32/bin/
+        cp OpenAL32.dll SDL2.dll libcurl-4.dll ../../../dhewm3/publish/$PKGDIR/
+        cd -
+    - name: Upload testbuild package
+      uses: actions/upload-artifact@v4
+      with:
+        name: ${{ env.pkgname }}
+        path: publish/
+        if-no-files-found: error
+    - name: Upload testbuild debug symbols
+      uses: actions/upload-artifact@v4
+      with:
+        name: ${{ env.pkgname }}-debugsyms
+        path: debug-syms/
+        if-no-files-found: error
+  build_win_x86_64_msvc:
+    runs-on: windows-latest
+    defaults:
+      run:
+        # use git bash for for all steps (unless specified otherwise per step)
+        shell: bash
+    strategy:
+      fail-fast: false
+    steps:
+    - name: Install build dependencies
+      run: |
+        # Download and extract dhewm3-libs
+        #echo $PWD # /d/a/dhewm3/dhewm3
+        # as the repo will be cloned into the directory we're currently in (O_o)
+        # go one directory up to D:\a\dhewm3\ and put the dhewm3libs there
+        cd ..
+        # https://github.com/dhewm/dhewm3-libs/archive/refs/heads/master.zip
+        # for some reason the following downloads an empty file, so use the other URL I got from
+        # "Copy Download Link" in Firefox (after downloading the file there) instead
+        #curl -o dhewm3libs.zip https://github.com/dhewm/dhewm3-libs/archive/refs/heads/master.zip
+        curl -o dhewm3libs.zip https://codeload.github.com/dhewm/dhewm3-libs/zip/refs/heads/master
+        # only unpack the stuff needed (no i686 stuff, no docs from share/)
+        unzip dhewm3libs.zip "dhewm3-libs-master/x86_64-w64-mingw32/**" -x "dhewm3-libs-master/x86_64-w64-mingw32/share/**"
+    - name: Check out repository code
+      uses: actions/checkout@v4
+    - name: Build
+      run: |
+        # build with cmake and visual studio
+        #echo $PWD # /d/a/dhewm3/dhewm3
+        # NOTE: not setting -G "Visual Studio 17 2022" so it just uses the default VS version it can find
+        cmake -A x64 -DDHEWM3LIBS="../dhewm3-libs-master/x86_64-w64-mingw32/" -DDEDICATED=ON -DTOOLS=ON -S neo/ -B build
+        time cmake --build build/ --config RelWithDebInfo
+    - name: Create testbuild package
+      run: |
+        # Create release directory tree
+        export PKGDIR="dhewm3-win64-$(git rev-parse --short HEAD)"
+        echo "pkgname=$PKGDIR" >> $GITHUB_ENV
+        #echo "PKGDIR is $PKGDIR"
+        mkdir -p publish/$PKGDIR/base
+        mkdir publish/$PKGDIR/d3xp
+        # debug symbols (*.pdb) are put in a separate zip
+        mkdir -p debug-syms/$PKGDIR
+        # Copy release assets
+        cd build/RelWithDebInfo
+        cp dhewm3.exe dhewm3ded.exe base.dll d3xp.dll ../../publish/$PKGDIR/
+        cp -r *.pdb ../../debug-syms/$PKGDIR/
+        cd ../..
+        # Copy misc assets
+        cp base/gamepad.cfg publish/$PKGDIR/base/
+        cp base/gamepad-d3xp.cfg publish/$PKGDIR/d3xp/
+        cp COPYING.txt publish/$PKGDIR/
+        echo "dhewm3 for 64bit (amd64 aka x86_64 aka x64) Windows, built $(date)" > publish/$PKGDIR/README.txt
+        echo -e "from ${{ github.ref_name }} commit ${{ github.sha }}\n" >> publish/$PKGDIR/README.txt
+        cat README.md >> publish/$PKGDIR/README.txt
+        cp Changelog.md publish/$PKGDIR/Changelog.txt
+        cp Configuration.md publish/$PKGDIR/Configuration.txt
+        # copy runtime libraries (SDL, OpenAL, cURL)
+        cd ../dhewm3-libs-master/x86_64-w64-mingw32/bin/
+        cp OpenAL32.dll SDL2.dll libcurl-4.dll ../../../dhewm3/publish/$PKGDIR/
+        cd -
+    - name: Upload testbuild package
+      uses: actions/upload-artifact@v4
+      with:
+        name: ${{ env.pkgname }}
+        path: publish/
+        if-no-files-found: error
+    - name: Upload testbuild debug symbols
+      uses: actions/upload-artifact@v4
+      with:
+        name: ${{ env.pkgname }}-debugsyms
+        path: debug-syms/
+        if-no-files-found: error