Zero stakes. You get free chips every day. Play them at the tables: blackjack, poker, roulette, slots.
Win ETH. Every chip you win at the tables credits your ETH balance (rate set by the server, daily budget from the prize pool). Claim it at the ETH cashier near the entrance: the server signs a voucher, you redeem it on-chain.
Leaderboard. Every week the top players share a slice of the prize pool.
VIP lounge. Reserved for Rare, Epic and Legendary characters.