Door Kickers: Action Squad

It's a simple game, but you can buy new weapons with special abilities and unlock character traits to give it a boost on your experience. Also, it's quite fun to play with friends and now this game has support to Steam Remote Play Together, so your friends don't even need to own the game.

Fun arcade action. Not all characters are viable in solo play, though

Great local co-op experience. has a zombie mode and infinite tower mode.