Any games like this but with CO OP?

[Red Duke]

^Title.

[rexyniknowit TTV]

I don't think you can get a game like this for co-op. The developer would have to code for a ,"host," player and then a ,"joining," player. Otherwise, you would both enter strange parts of each floor, and it could bug the experience. The co-op feature could be added though using a Host generating player, and a joining player, but it would go too fast unless it accounted for 2x the player vs 2x the enemies.

Maybe a Redneck Arena mode could be added.

As for rogue like coop games, there's Sundered and Wizard of Legend but they aren't fps. There's also cheap arena fps game called Blood and Bacon (kinda boring after a bit without friends though.)

[Aryend]

Maybe Mothergunship?

https://store.steampowered.com/app/574090/MOTHERGUNSHIP/

Apart from that one I don't remember any other fps roguelite with coop tbh. Mothergunship is quite fun, but imho it gets more repetitive than Immortal Redneck, and I don't like the enemy design as much. If you ever played Tower of Guns, Mothergunship is basically that, but with coop and guncrafting.