there's basically no other first person, open world, fantasy RPG out there. the closest i can think of at the moment is like, kingdom come: deliverance, which aside from not really being fantasy (other than its idealized racially pure christian ethnostate version of europe) has garbage inaccessible combat you have to grind hours of being a racist czech peasant to even access the tutorial of. also it has no playable cat bois. skyrim is mediocre at best but it fills that niche of first person, open world, fantasy RPG with accessible and simple combat mechanics, and has the khajiit on top of that.