Reader Mads, inspired by the creepy TF2 mod we posted recently, let us know about something similar he did to Assassin’s Creed II.
https://kotaku.com/the-most-terrifying-team-fortress-2-mod-straight-from-1207560538
Cracking open the game’s code, he was able to find stuff that let him mess with the game’s field of view, timing, weather, cameras and…necks.