Main Post
I had this incredible roommate last month month and we played coop everyday for two weeks.
I had already completed most of the games singleplayer so I wasn't going to count them, however I spent so much quality gaming time that I just can't not put them on my list, so here we go:
6. Enter The Gungeon [coop] (~2 hours)
This is where I knew I had something special right there. Wanted to train him so maybe I could unlock
that week, and BAM, we finish it together second try.
After 100 hours playing singleplayer, I had a surprising lot of fun playing Gungeon coop. It's clearly a second thought and needs some tweaks still, but it's quite alright for what it offers.
7. Risk of Rain [coop] (5 hours)
This took us quite a lot of runs during 2~3 days to finally complete. Although a lot a fun there was a quite noticible luck factor involved on our runs. Sometimes we would just give up by the third stage because we felt extremely underpowered, and taking way too long to find the exit didn't help.
The run we finally won we got OP to the point we could just walk around betweem the 1000 mobs of big enemies and still wouldn't die.
Above all it was a gun experience, we loved it and I particularly had more fun than finishing single player.
8. 20XX [coop] (2.4 hours)
Hadn't played it in a while, when I stopped I was able to consistently win. I don't know what happened but we had a few starting runs we would die by the third boss.
20XX is always a slightly unpolished but great experience. I love how the roguelite hard decision making is in there in the form of really complex platforming sections, there was this remarkable moment my partner was like "come on, we need more items, let's do it", and I said "man, we can't afford to lose more health", so he walks slightly to the left and sees these giant fire spitting machines and was instantly "yeah, nope, never mind".
This felt like the least coop experience from all the games if it makes sense. It was like we were playing single player but together? There was very little coop strategies involved minus the occasional "you go get that item for us because I'm almost dying".
9. Broforce [coop] (4.4 hours)
Haven't actually played it singleplayer yet and man oh man, I'll never doubt the Overwhelmingly Positive crowd ever again. I was really unexcited about Broforce as I knew it was all about action movies references and I simply have no knowledge whatsoever on that topic. Also I had the feeling the humor would be this "straight man" focused kinda thing.
Went in expecting this Metal Slug / Contra gameplay with an annoying humor behind. Left feeling impressed on how the gameplay manages to be based on those games but still its own thing with its destructible short stages and its hugely different non choosable cast, and also how although I probably knew only about 10% of what the characters were referencing, we would laugh SO HARD everytime the narrator would scream the name of a boss or of a new character.
Really solid gameplay, I'll definitely come back to it on singleplayer.
10. Portal 2 [coop] (5 hours)
By far the most polished experience based on the simple fact that there was a complete campaign based around coop only. And wow. Went in knowing the level design would be absolutely genious and the puzzles would consistently impress me. No disappointments there. Game is fantastic and rightfully remembered by some as one of the bests (if not the best) of last generation.
I was more impressed with the fact that we were able to complete it however. There was some mind bending stuff going on in there. We were very proud of ourselves when the credits rolled lol.