Might be not as recent, but the Trine series might be worth a look. I would also recommend Magicka, but that can be chaotic at times so I am not sure if that would be a good fit or not.

Since they mentioned action games as an option, honestly Vermintide 2 can be a super fun co-op game and is very enjoyable across the easiest and hardest difficulties. It’s Warhammer Fantasy so the aesthetic is gonna be more grimdark and gory than cute, but holy fucknuggets is the gameplay good. Cool thing is the game is very much “easy to pick up, hard to master”, so for casual ratslaying it’s a nice chill game on anything below “Champion” difficulty, and on “Champion” and above you start caring more about mechanics like pusheblocking, dodging, kiting bosses, stagger, cleave, weapon properties… you can go pretty deep lol.