A scam as of the time of witing. You can cash out from the game to a web wallet that you don't own the keys of, when trying to withdraw your cash you will be met with a message saying "withdrawals will be available after [the coin's] listing" making you unable to cash out. All over the devs' (Realis Network) social media comments you can find people demanding a status update on the coin's listing and being completely ignored.