Aside from some of the things mentioned here, Death Trash is a pretty neat indev rpg.

I really like Golf With Your Friends.

Mount & Blade Warband is fantastic and I highly recommend it if you haven’t played it.

Unrailed! is a neat little coop game to play with friends. If you buy this one on Steam you can use remote play together so only one person in your group needs to buy it.

Ultimate Chicken Horse is fun for a while with friends. Same deal with remote play together with this game.

Both Hotline Miami games are really fun.