What are your favourite local co-op games?

My daughter and I have played through quite a few games. Here are our favorites:

• ANY LEGO game, we have played through many of these
• The TRINE series. They are fun puzzle platforms
• portal 2 co-op. There is a campaign and other maps on the workshop
• brothers: a tale of two sons. Sit right next to each other and share the controller
• Unraveled 2, puzzle platform errors
• It takes two is an amazing game from EA.
• sackboy: a big adventure
• battle block theater is a fun romp
• bleep bloop
• degrees of separation, mostly fun there was a few annoying puzzles, but many can be skipped
• guacamole is a nice battle platformer
• ibb and obb is a very unique puzzle platformer
• octodad is pretty great fun
• pixel junk monsters is a tower defense style co op game
• putty pals is a fun if childish looking game
• spelunky is a rogue like
• toodee and topdee is a fun puzzler

Those are our favorites!

Ember Knights is a rogue lite heavily inspired by the gameplay of hades. Supports up to 4 players.

Plate Up is somewhat simmiliar to overcooked, but is more about process optimisation and not about dealing with the oddities of a stage.

Most lego games also offer local coop and are good fun.

30xx is a roguelite with gameplay simmiliar to MegaMan X that can be played by 2 players.

Towerfall Ascension is also worth a look.

Hell Divers is also a great game, but it had sound issues(strange echoes of some enemy sounds) last time i tried.

Stardew Valley

Lovers In a Dangerous Space Time

A lot of great games have already been mentioned. Here are some options that I don't think anyone has mentioned yet:

• Assault Android Cactus - twin stick shooter (to access the start menu, you must be inside of a stage, not in the map)
• Jamestown - bullet hell (get original game, Jamestown+ does not work on Steam Deck)
• Broforce - 2D side scrolling action game (there's a free version, Expendabros, that you can try out)
• Gauntlet - dungeon crawler
• Guns, Gore & Cannoli - side-scrolling shooter (it plays on Steam Deck, but throws an error when you exit, so you might have to close it directly on the Steam Deck or mess with compatibility options, I'm not sure)
• Hammer Watch - dungeon crawler (need to grab a community controller layout - there is one specifically for co-op)
• Monaco - stealth co-op heist
• Human Fall Flat - physics puzzle adventure
• Wizard of Legend - roguelike
• Divinity Original Sin - turn based rpg (might want to check out the second entry as it is supposed to be even better)

These games are in my backlog and verified on Steam Deck, but I haven't played them yet:

• Children of Morta - roguelike hack and slash
• Darksiders Genesis - hack & slash adventure
• Huntdown - 2d sidescrolling shooter

Unrailed is pretty fun for chaotic couch co-op.

If you're looking for something more relaxed, the entire Trine series.

I remember having a lot of fun with Lovers in a Dangerous Space Time a few years ago.

You have up to 4 players (iirc) manage a spaceship which is essentially a platforming area. It gets pretty hectic (in a fun way imo) managing the different equipment on the ship and piloting it around while dealing with obstacles and enemies.

Overcooked is a lot of fun and it's local coop 2-4 players.

Lego Starwars works well and is a lot of fun. Only 2 players, though.

Castle Crashers. It's a classic side scroll beatemup with RPG elements. I've beaten it a few times both solo and with friends.

Moving Out is lots of fun and works really nicely with Steam Deck while docked. It's a physics based game where you move stuff out of houses and break a couple of windows and doors while doing it.

At the moment it is 75% off on Steam.

Untitled Goose Game. My partner isn’t really into gaming and we had a blast playing The Quarry has a controller passing coop.

Id love to get my wife to see how the steam deck is fun, instead of giving me crap for spending time on it. She doesn't play games, and I suspect something like overcooked which gets hectic fast would just be frustrating for her, but really slow games would also lose her interest...

There are a lot of good ones listed already, but our family loves playing Drink More Glurp. It's a pass and play game so many people can take turns playing.

More action oriented Duck Game has been a main stay with our family for years, but more recently have been playing modded Rounds (the game Rounds) to have 4 player and Spiderheck is also good.

Divinity: Original Sin 2 is a great turn based rpg with splitscreen. Only problem I ran in to is having to look a lot of stuff up to get through.

I love NidHogg

I dislike Nintendo but, Mario Kart too

Speedrunners - Run more fast than the other to push them out of screen. Really fun, my Friends always ask for it.

Drawful 2 - draw what you’ve been ask to draw. Then guess what the others where supposed to draw. Everybody just need a phone.

Ultimate chicken horse - plateformer but everyround, each player choose and place a trap/obstacle

Move or die - big brawl mess with rules changing every 20 secondes

Human Fall Flat is a Gang Beasts style platform puzzler

Broforce

Overcooked 2 has better controls than 1

Rayman Origins

Rayman Legends

Towerfall Ascension

Out of Space is like Moving Out, but in space

Chariot

Lego games, except the Indiana Jones and Jurassic Park ones.

There is (was?) a great website called cooptimus

KeyWe was pretty fun, similar feel to Overcooked but less stressful!

I'm playing Rain World now, the dlc has up to 4 player coop

PlateUp! is a somewhat recent release that I love playing with groups on my steam deck. It’s a multiplayer restaurant sim (think Overcooked) mixed with a roguelite. It doesn’t have as fun unfair chaos as Overcooked and it feels great to play when you have a nice rhythm going.

Ember Knights has already been mentioned, but I'll go ahead and suggest Full Metal Furies.