If you can forgive the self promotion and enjoy platformers. Our game has (an admittedly challenging) couch coop mode.

https://store.steampowered.com/app/1771200/Cat_Box_Paradox/

With mixed results I’ve used it for summarising the plots of books if I’m about to go back into a book series I’ve not read for a while.

Thanks very much, that’s great to hear.

Its a retro inspired, colour swapping platformer. Lots of variety and fun to be had.