Local co-op for 3 players or more players [level 2+ unbundled giveaway inside]

I did enjoy human fall flat. A 4 player patch came out not long ago, but I dont know whether it works with shared screen (2 players supported for sure)

Another game is Ultimate Chicken Horse, though I didn't like it, you may find it suitable.

I agree with the comments above that Keep talking and nobody explodes is a great option

One game that has co-op but the versus mode is better is Towerfall Ascension. 100% guaranteed you guys will enjoy it.

Funniest game ever to play with friends.

Mother Russia Bleeds is also a good beat'm up.

Hidden in Plain Sight
https://store.steampowered.com/app/303590/Hidden_in_Plain_Sight/

Not sure if anyone's mentioned it, but Screencheat is a blast to play online, I imaging it'd be better local though.

I would recommend Hammerwatch. It's a pretty simple game but me and my cousin had a lot of fun playing that one. I liked it more than for example Castle Crashers. Also Worms (I prefer Reloaded), Civilization, Trine or Rayman Origins are great.

Jamestown is great, if you like shooters (classic, not FPS), and supports up to 4 players on controllers & keyboard.

Trine 1,2,3.rayman origins and legend.

Definitely Broforce and Trine 1, 2, 3.

Thanks for the giveaway. I loved magicka to play with a friend

Crawl !

Everything here is ffa v.s.:
Tooth and Tail
Rivals of Aether
Ultimate Chicken Horse
Hidden in Plain Sight
Crawl
Invisigun Heroes
Rocket Wars
SpeedRunners
Towerfall Ascension
Tricky Towers

Dang. Opened the thread for some suggestions but they were already mentioned, and then saw some nice suggestions. So thanks for this thread :d

Most people already seemed to mention games that first popped up in my head which is great.

Looking through my library, apparently Assault Android Cactus has local coop, keyboard and controller support. It's already a great single player game so I'm sure it would be fun with friends if you like the sort of game.

https://store.steampowered.com/app/296470/Mount_Your_Friends/

https://store.steampowered.com/app/285900/Gang_Beasts/

https://store.steampowered.com/app/477160/Human_Fall_Flat/

https://store.steampowered.com/app/431240/

https://store.steampowered.com/app/251470/TowerFall_Ascension/

Worms franchise

Lost Castle, Legend of Dungeon, Hammerwatch.

What about borderland / borderland 2 / borderland pre-sequel ?

Keep talking and noone explodes ;)

Moon Hunters! It's super fun to keep going through and choosing different options (not to mention the art and soundtrack are gorgeous)

FORCED: Slightly Better Edition
Crimsonland (old but fun)

I think a fun game for up to 3 people is the You Dont Know Jack (YDKJ) Series.
It has a very stupid humor and weird questions, but IMO its fun.

Also, if the game hasnt to be on Steam, try Super Mario Wars

Speedrunners its really fun!

worms!

I'm a couch coop collector and honestly they already brought you an amazing list, but since i couldn't find a Road Redemption recommendation, i'll ask you to try this out, it is very insane and have a nice price!

Road Redemption 50%

View attached image.

You have already received a lot of good suggestions, but I would like to add two more:

BADLAND: Game of the Year Edition - up to 4 players local cooperative As I remember rightly, I played it with my brother on PS3, and it was fun

Final Exam - 2 players local cooperative and up to 4 players through Internet I played it recently with my brother and it was f@#$ing awesome XD