Keno

A lottery-style game. You pick between 1 and 20 numbers from a pool of 80. The casino draws 20 numbers. You’re paid based on how many of your picks matched.

Simple to play, brutal on RTP. Typical online keno house edges: 20-25% — dramatically worse than slots.

Why the house edge is so high: the paytables promise lottery-style top prizes for hitting many numbers (e.g., 10-out-of-10 pays 100,000×), but the probability of hitting is astronomically low. The expected value of a keno ticket is dominated by these near-impossible top prizes, which players almost never realise.

Never play keno with bonus money for wagering — even at 100% contribution, the house grinds you fast. Play only for recreational lottery-adjacent variance if that’s what you want.