Not sure why you'd want a cryptocurrency with no other use at all(unless you're creating some sort of memecoin here), but you're going to want to create a token, not a coin. It'll be totally up to you, but you're better off going with the SPL or BEP20 standard; definitely not ERC20.
not a meme coin, its a coin to run dedicated servers.
for example, the cost of running a dedicated server is expensive, But these days people have fiber optics with 300 up and 300 down and can go higher, the coin will be backed by the actual virtual reality multiplayer game, so its backed by an actual product you can play and has replay value
its also a PC game , and a mobile game, so everyone can play together its not just a virtual reality game, its cross platform