Along the way from free sandbox mod for Half-Life 2 to standalone game on Steam, it's sold millions of copies, it's been used to make thousands of videos and webcomics, and has hundreds of popular mods and gamemodes created by users, like Prop Hunt, Jailbreak, Trouble in Terrorist Town, and more. It must have been difficult narrowing the selection down to just a dozen features, considering Garry's Mod has been around for 15 years now. You'll also see Ross Scott's comedy series Civil Protection, moody sci-fi drama Shelf-Life Part 1 and Part 2, the gorgeously atmospheric 40-minute long film Haven, and several other notable machinima highlights, all made with Garry's Mod, the physics sandbox created by Garry Newman and Facepunch Studios way back in 2004.