diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b4e807929..e62c178ed 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -32,7 +32,7 @@ jobs:
       - name: Setup MSBuild
         uses: microsoft/setup-msbuild@v2
         with:
-          vs-version: '16.8'
+          vs-version: '16'
 
       - name: Build and Run unittests
         run: |
@@ -58,95 +58,68 @@ jobs:
           move msvc\${{ env.buildRelease }}\mp.pdb publish\debug\mp.pdb
 
       - name: Deploy artifacts
-        uses: actions/upload-artifact@v3.1.1
+        uses: actions/upload-artifact@v4
         with:
           name: win32
           path: publish/*
 
   testdemos:
     name: 'Test demos'
-    runs-on: ubuntu-20.04
-    container: s1lentq/testdemos:latest
+    runs-on: ubuntu-latest
+    container: rehldsorg/testdemos:latest
     needs: [windows]
 
-    env:
-      WINEDEBUG: -all
-      WINEDLLOVERRIDES: mshtml=
-      ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION: true
-
     defaults:
       run:
         shell: bash
-        working-directory: ../../../opt/HLDS
+        working-directory: /opt/HLDS
+
+    strategy:
+      fail-fast: false
+      matrix:
+        test: [
+          { file: 'cstrike-basic-1',    desc: 'CS: Testing jumping, scenarios, shooting etc' },
+        ]
 
     steps:
       - name: Deploying windows artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: win32
 
-      - name: Play demos
+      - name: Setup dependencies
         run: |
           chown root ~
           rsync -a deps/regamedll/* .
           mv $GITHUB_WORKSPACE/tests/mp.dll cstrike/dlls/mp.dll
 
-          descs=(
-            "CS: Testing jumping, scenarios, shooting etc"
-          )
-
-          demos=(
-            "cstrike-basic-1"
-          )
-
-          retVal=0
-          for i in "${!demos[@]}"; do
-            params=$(cat "testdemos/${demos[i]}.params")
-
-            echo -e "\e[1m[$((i + 1))/${#demos[@]}] \e[1;36m${descs[i]} testing...\e[0m"
-            echo -e "    - \e[0;33mParameters $params\e[0m"
-
-            wine hlds.exe --rehlds-enable-all-hooks --rehlds-test-play "testdemos/${demos[i]}.bin" $params &> result.log || retVal=$?
-
-            if [ $retVal -ne 777 ] && [ $retVal -ne 9 ]; then
-              # Print with catchy messages
-              while read line; do
-                echo -e "      \e[0;33m$line"
-              done <<< $(cat result.log | sed '0,/demo failed/I!d;/wine:/d;/./,$!d')
-
-              echo "      🔸  🔸  🔸  🔸  🔸  🔸  🔸  🔸  🔸  🔸"
-              while read line; do
-                echo -e "      \e[1;31m$line";
-              done < rehlds_demo_error.txt
-              echo -e "      \e[30;41mExit code: $retVal\e[0m"
-              echo -e "\e[1m[$((i + 1))/${#demos[@]}] \e[1;36m${descs[i]} testing...\e[1;31m Failed ❌"
-              exit 6 # Test demo failed
-            else
-              # Print result HLDS console
-              while read line; do
-                echo -e "      \e[0;33m$line"
-              done <<< $(cat result.log | sed '/wine:/d;/./,$!d')
-              echo -e "      \e[30;43mExit code: $retVal\e[0m"
-              echo -e "\e[1m[$((i + 1))/${#demos[@]}] \e[1;36m${descs[i]} testing...\e[1;32m Succeed ✔"
-            fi
-          done
+      - name: Play test
+        env:
+          demo: ${{ matrix.test.file }}
+          desc: ${{ matrix.test.desc }}
+        run: ./runTest.sh
 
   linux:
     name: 'Linux'
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
+    container: debian:11-slim
 
     steps:
       - name: Checkout
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
-          submodules: true
 
-      - name: Check dependencies
+      - name: Install dependencies
         run: |
-          sudo dpkg --add-architecture i386
-          sudo apt-get update
-          sudo apt-get install -y gcc-multilib g++-multilib
+          dpkg --add-architecture i386
+          apt-get update
+          apt-get install -y \
+            gcc-multilib g++-multilib \
+            build-essential \
+            libc6-dev libc6-dev-i386 \
+            git cmake rsync \
+            g++ gcc
 
       - name: Build and Run unittests
         run: |
@@ -171,7 +144,7 @@ jobs:
           fi
         shell: bash
 
-      - name: Build
+      - name: Build using GCC Compiler
         run: |
           rm -rf build && CC=gcc CXX=g++ cmake -B build && cmake --build build -j8
 
@@ -199,18 +172,12 @@ jobs:
         shell: bash
 
       - name: Deploy artifacts
-        uses: actions/upload-artifact@v3.1.1
+        uses: actions/upload-artifact@v4
         id: upload-job
         with:
           name: linux32
           path: publish/*
 
-      - name: Cleanup temporary artifacts
-        if: success() && steps.upload-job.outcome == 'success'
-        run: |
-          rm -rf cssdk
-          rm -f appversion.h
-
   publish:
     name: 'Publish'
     runs-on: ubuntu-latest
@@ -218,12 +185,12 @@ jobs:
 
     steps:
       - name: Deploying linux artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: linux32
 
       - name: Deploying windows artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: win32
 
@@ -264,8 +231,3 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.API_TOKEN }}
 
-      - name: Cleanup temporary artifacts
-        if: success() && steps.publish-job.outcome == 'success'
-        run: |
-          rm -rf bin dist debug cssdk
-          rm -f *.zip appversion.h