: Unlike earlier versions that required owning a Source engine game (like Counter-Strike: Source ), version 13 is a complete standalone product.

: Windows 10/11 (newer builds) or Windows XP/Vista (for original compatibility).

If you are looking to run this version on your PC, ensure your system meets these standard requirements:

For those using non-Steam (pirated) versions found via torrents, playing online usually requires virtual LAN software like Hamachi or Radmin VPN to connect with friends over a simulated local network.

: The most stable and feature-complete way to experience Garry's Mod 13 is through the official Steam store page , which provides automatic updates and full access to millions of community mods.

: This version introduced seamless downloading of community-created addons directly within the game.