Sonic Robo Blast 2 Kart

Sonic Robo Blast 2 Kart (Or SRB2K for short) is a mod of the popular fangame Sonic Robo Blast 2 (which itself is a mod for DOOM) that transforms the game into a Kart Racer. In terms of gameplay, its difficulty matches up with Mario Karts SNES to 64, with crazy antics and billboarding sprites. While many courses are from popular/made-up Sonic locations, some Mario Kart tracks make it here. This game also has a huge modding scene with new characters and courses being created almost every day.