That long lost Sega Saturn Sonic game everybody is always dreaming about. Still unfinished sadly, but honestly I doubt anybody would know that if you didn't tell them. The base game is already expansive enough as is, especially if you go emblem hunting, but the modding community that this game enjoys thanks to being a modified Doom Engine is what truly makes the game as enjoyable as it is. Endless content, y'know? This is the kind of game I can boot up just whenever I'm bored and don't want to think too hard about what I'm playing.