Most of them are successful with their launches but the stability and consistency is where they're questionable. Not that a lot of them really survives for that long. And that's why with projects like OP is proposing, I don't think that it will take a long time for the market or even the game alone. Well, it's for the users to tell if they are good enough and the developers of it should be strong and firm with what they're working on. The consistency of the community should be maintained and provided by the devs of it on how they cater the needs of the demand of their gameFIs.