No casino we list names MetaMask in its cashier — and there is a reason for that.
MetaMask is a wallet you hold the keys to, not a payment rail a casino signs a contract with. A site that accepts crypto shows you a chain and a coin and an address to send to. Whether the funds leave a browser wallet, an exchange account or a piece of hardware is invisible at the other end. So a badge reading MetaMask accepted describes your side of the transfer, not theirs. We record the coins and networks a cashier actually publishes, and a wallet brand has never been one of them.
This page stays out of Google until that changes somewhere we actually list. If the point is sending crypto from a wallet under your own control, start at the Litecoin page or the payments overview instead.