Enhanced game documentation with comprehensive installation and configuration details

Co-authored-by: iaretechnician <2749183+iaretechnician@users.noreply.github.com>

modules/billing/docs/hl2d/index.php

@@ -30,6 +30,7 @@
         <li><strong style="color: #ffffff;">Protocol:</strong> UDP</li>
         <li><strong style="color: #ffffff;">Minimum RAM:</strong> 2–4 GB per process baseline (varies by game/players)</li>
         <li><strong style="color: #ffffff;">Engine:</strong> Source / SRCDS</li>
+        <li><strong style="color: #ffffff;">Steam App ID:</strong> <code style="background: #0f172a; padding: 2px 6px; border-radius: 3px; color: #a5b4fc;">232370</code></li>
         <li><strong style="color: #ffffff;">Recommended OS:</strong> Linux (Ubuntu/Debian) or Windows Server</li>
     </ul>
 </div>
@@ -148,24 +149,53 @@ cd ~/gameserver
 <h4>Windows Server</h4>
 <p>Download the server files from the official game website or through Steam (if applicable). Extract to a dedicated folder and run the server executable.</p>
 
-<h3>Using SteamCMD (if applicable)</h3>
-<p>Many game servers can be installed via SteamCMD:</p>
-<pre><code># Install SteamCMD (Ubuntu/Debian)
-sudo apt install lib32gcc-s1 steamcmd
+<h3>Using SteamCMD - RECOMMENDED METHOD</h3>
+<p><strong>This game can be installed via SteamCMD using App ID: 232370</strong></p>
 
-# Run SteamCMD
-steamcmd
+<h4>Install SteamCMD (Ubuntu/Debian)</h4>
+<pre><code># Update package list
+sudo apt update
 
-# Login and download (use your Steam credentials or anonymous)
-login anonymous
-force_install_dir /path/to/server
-app_update [APP_ID] validate
-quit
+# Enable 32-bit architecture
+sudo dpkg --add-architecture i386
+sudo apt update
+
+# Install SteamCMD
+sudo apt install -y lib32gcc-s1 steamcmd
 </code></pre>
 
+<h4>Download Server Files</h4>
+<pre><code># Create directory for game server
+mkdir -p ~/gameservers/hl2d
+
+# Run SteamCMD and download
+steamcmd +login anonymous \
+         +force_install_dir ~/gameservers/hl2d \
+         +app_update 232370 validate \
+         +quit
+
+# Server files are now in ~/gameservers/hl2d/
+cd ~/gameservers/hl2d
+ls -la
+</code></pre>
+
+<h4>Windows Installation with SteamCMD</h4>
+<ol>
+    <li>Download SteamCMD from: <a href="https://steamcdn-a.akamaihd.net/client/installer/steamcmd.zip" target="_blank">https://steamcdn-a.akamaihd.net/client/installer/steamcmd.zip</a></li>
+    <li>Extract to <code>C:\steamcmd\</code></li>
+    <li>Open Command Prompt and run:</li>
+</ol>
+<pre><code>cd C:\steamcmd
+steamcmd.exe +login anonymous ^
+             +force_install_dir C:\gameservers\hl2d ^
+             +app_update 232370 validate ^
+             +quit
+</code></pre>
+
+
 <h2 id="configuration">Server Configuration</h2>
 
-<p>After installation, configure your server through the configuration files typically located in the server directory.</p>
+<p>After installation, you'll need to configure your server. Here's where to find the configuration files and what settings you can change.</p>
 
 <h3>Essential Settings</h3>
 <ul>