What to play? (Immersive RPG)

What to play ?

Hey, I like gaming, but am outta the loop and am looking for a good long game, probably like am RPG.(I like overcooked, Mario kart, super smash bros, chicken horse, but that kinda thing is not what I'm after). Looking for a game in a universe where you build your character and I dunno maybe goin around doing quests and stuff, fights etc, where you can immerse yourself in the game. One that's less chance and more strategy, and not just finding and collecting shit for the sake of it.

GTA, Ratchet and clankand age of empires is kinda closer to what I'm looking for.

PS4 or PC.

Is assasins creed one?

Thank you 🙏