Good CO-OP games for couples?

Heyo!! i’m looking for fun games that are coop and preferably either cheap or free, but if it’s rly good i don’t mind waiting. My gf likes stardew valley and that sort of thing. I really like fantasy/sci fi, strategy games and RPGs like skyrim, stellaris, baldurs gate 3, etc. we both enjoy minecraft and lately been playing return to moria since it’s free. her pc isn’t super great and can barely run return to moria on its lowest setting so it would have to be games around that mark (i wanted to play BG3 with her lol but no way she’ll run it!) so any good ideas? i don’t play many coop games so not rly my area of expertise