Garry's Mod has long stood the test of time as one ... "Finally got this," he writes in a post with a screenshot of the newly unlocked "Yes, I am the real Garry!" achievement.

Garry's Mod is a physics sandbox created by Garry Newman and Facepunch Studios way back in 2004, and in the two decades since release it has spawned countless thousands of mods, memes and gamemodes.