You play as doge and collect dogecoins to spend on memes. The game is called X and it runs a crypto miner on your gpu when you play it (you get coins in game, Elon gets coins in real life).
You can pay for X premium for $10/month which unlocks cosmetics and lets you access the members-only chatroom
The cosmetics are all unique and non-fungible, and can be resold to other X premium users for real-world money in the form of credit that can be used to buy different tokens cosmetics.