i have runned this with 3 and 4 players but there is not category, can a mod add them???

So a single category for 3/4 person coop, right? I guess I could add that.

Or maybe we should just have 2 categories: 1 person coop, and multi-person coop? I'm not sure if having more players during a run gives an advantage or a disadvantage.

just add more categories. me and my friends want to put our 3 player thing and eventually 4 player. but do what ever you think will be better

Aight. I've added a single category for 3/4 players coop (find it under "Miscellaneous"). The game is not that popular, and running with multiple people is even less possible, so that should be enough.