I think most of the games I’ve liked lately are roguelites:

• Bullets Per Minute
• Crypt of the Necrodancer
• Plate-Up
• Unrailed
• Noita
• Risk of Rain 2

Except for BPM and Noita, I’d recommend all of these as excellent coop games too. Here are some summary descriptions:

Bullets Per Minute:

• first-person shooter dungeon crawler
• awesome rock soundtrack with a steady beat
• you have to shoot and reload to the beat

Crypt of the Necrodancer:

• top-down 2d dungeon crawler
• awesome electronic soundtrack with a steady beat
• you have to attack and move to the beat

Plate-Up:

• top-down 2d restaurant simulator
• episodic gameplay where you try to make it through each day by serving all the customers
• if any customer waits too long, you lose
• inevitably gets crazy and chaotic, perfect for a group looking for a hectic and fun coop game
• devs are based, epic mod support

Unrailed:

• top-down 2d rail-building game
• you start with a train on some rails, with the train always moving forwards
• the goal is to continuously place rails in front of the train, otherwise you lose
• similarly to Plate-Up, incredibly chaotic energy, very fun

Noita:

• sidescrolling dungeon crawler
• you mainly fight enemies using wands and spells
• wands on their own are effectively just a bunch of empty slots; you decide which spells go in them, and in which order
• this may or may not eventually result in game-breaking shenanigans (or suicidal shenanigans, or both)
• there are a lot of secrets. like the entire game is a meta-narrative about discovering secrets. question everything.
• you will die. a lot. half the time to your own wacky spells. this is the way.

Risk of Rain 2:

• 3rd-person shooter (some characters are primarily melee, but whatever lol)
• game consists of a series of stages, each of which has a bunch of enemies, a bunch of chests with items, and a boss you must defeat to progress further
• also has a decent few secrets. Not on the same scale as Noita, but still quite a few