So from all of the "sandbox" 3d game experiences i've had, that's including modded and unmodded games, such as stuff from illusion (Artificial Academy, Koikatsu, HS, etc) and bethesda games (skyrim, fallout) i think still The Sims 4 is the best game there is for roleplaying purposes, sadly the only one where you can get some netorase (cuckolding) stuff realistically going on, as much as limited the game is compared to it's predecesors, and in my opinion it's "official" sex framework still feels lacking in features even after years of release (and profiting millions). Still no other similar game can give you the liberty of making the ultimate slut wife, where you can share her at your own conditions, so if you want to make her sleep around with a bunch of other guys, or have a huge cock lover, or make her a prostitute, a porn actress, if you want you can create your own food/retail bussiness and make her do dirty stuff with the clients, make her show herself naked in front of them. Honestly, you can do whatever you want, as long as you don't mind the lack of depth and features, there is still a huge amount of animations to somewhat compensate.
And the reason i'm saying this is because i've started playing it again since they announced the new expansion, that pretty much allows you to rent your own property, and honestly it sounds very promising for a NTRS enjoyer, just imagine having your own hot spring resort, where the main attraction is sharing your wife to all your patrons (similar to inn my wife, adelaide inn) or having a couple in a dire economic situation, and the husband decides to pay the landlord with some wife's services, until stuff starts to escalate, and then they decide to go further into the cuckold play, etc.
Just imagine the possibilities, if The Sims 4 was half decent game, with actually good mods that expanded the gameplay.