The concept of a web3 Roblox is probably the best conceptualization of a web3 gaming platform.

-There's a virtual marketplace of skins/clothes that can be used from game to game motivated by a creator economy (basically NFTs)

-Game devs can make money from in-game purchases

A pro of this system would be more ownership of the IP holders, wherein they aren't getting extremely unfavorable rates like in the case of young devs for Roblox.

Living outside of the central authority of Roblox Inc would be a positive and a negative.