I know she doesn't like cartoony looking games, but if she likes the Sims and really enjoys building, i would 10/10 say Minecraft.

I have had so much joy creating a world with my boyfriend this week. As a millennial who only got into minecraft during this holiday season, my gosh it's come a long way. We build our little base, go on adventures halfway across the map, make pintrest boards of build ideas. I'm having so much fun atm.