Tower Unite. It's actually on sale right now on Steam. It's kind of like if VRchat had Steam Workshop support, and more minigames. You can build your own personal living space, play fun games for in-game money, use said in-game money to buy nifty in-game items and stuff, and don't worry, that's not the only thing about it.
The real meat is in the minigames available right now, there's at least 2 multiplayer zombie shooter games, a kart racer, a mini-golf game, a game where you play as either a knight or a dragon and try to kill the other. Tons of fun to have with your buddies there.
And the Steam Workshop Support is good for a lot of things, you can get plenty of player models for starters. My favorite part is that you can get a lot custom karts for the kart racer. Far as I can tell, the custom karts don't effect anything other than the vehicle you're riding, so there's nothing really unfair about it. Still though, any game that let's you play as Mario and ride a kart that's literally the Patty Wagon from the Spongebob movie is a good one in my book.
For anyone curious, the developers used to do a Gmod thing called "Gmod Tower" I think, so that's sort of where they got their ideas.