DRL (formerly DoomRL), short for Doom, the roguelike video game developed by ChaosForge, following a cease and desist notice from "Doom" trademark owner, ZeniMax Media, the game's names was changed to "DRL" in which year?
DRL (video game):  Following a cease and desist notice from "Doom" trademark owner, ZeniMax Media, the game's names was changed to "DRL" in 2016. ZeniMax Media: ZeniMax Media Inc. is an American media company.
2016