Garry's Mod has entered the Guiness World Records: Gamer's Edition 2025 as the best-selling PC exclusive of all-time.

Garry's Mod's first (free) release hit on Christmas Eve 2004, and the game has maintained a presence on Steam since 2006, where it currently sells for £5.99.

Official Garry's Mod spiritual sequel Sandbox is finally available for everyone to try, letting you make any game mode you can think of.