Online keno UK explained

What online keno is and how it differs from bingo and lotteries

Keno is one of the oldest numbers games, and its online form keeps the simple idea: choose some numbers, watch 20 balls drawn from 80, and get paid for matches. Each number you choose is a spot, and each spot that comes up is a catch. What you win depends on the combination of spots and catches, read from a pay table shown in the game.

It looks like bingo or a lottery but works differently from both. In online bingo you compete with other players for a shared prize. In keno you play against the house: your payout is fixed by the pay table, whatever anyone else does, and the margin is built into that table. It sits with the other instant and numbers games in our casino games hub, alongside online scratchcards.

How to play online keno, step by step

1. Open a keno game and read the rules panel, which shows the pay table for each number of spots and the RTP.
2. Choose your stake per game.
3. Pick your spots by clicking numbers on the 1 to 80 board, or use quick pick to have the game choose them at random.
4. Start the draw. The game’s random number generator draws 20 numbers, which light up on the board.
5. Your catches are counted and the pay table decides the payout, which is added to your balance.
6. To play again, start the next draw yourself; UK rules do not allow a run of draws to play automatically.

Online keno odds: the exact chance of every catch

Because 20 of the 80 numbers are drawn, any single pick has a 25% chance of being drawn. The odds of catching several picks at once follow from that and fall quickly. The table shows the exact chances for a 10-spot game, calculated from the 20-from-80 draw.

On average you catch 2.5 of 10 picks. That is why ten-spot pay tables pay nothing for two or three catches and save their large multiples for seven or more. Some versions pay a small amount for zero catches on high-spot games, because catching nothing is more likely (about 1 in 22) than catching six.

Reading a keno pay table: a worked 4-spot example

The pay table is where the house edge lives. Here is an illustrative 4-spot table, not taken from any real game, with returns shown as multiples of the stake (including the stake itself).

Nearly half of this game’s return comes from the 4-catch prize, which lands once in about 326 games. Most of the time you either lose the stake or get it back. Change the 4-catch return from 150× to 100× and the RTP drops to about 77.8%, which shows how much a single line of the table matters. Real pay tables differ from game to game, so compare them; the expected value glossary entry explains the calculation.

Keno RTP and house edge: why versions differ so much

Keno has a reputation as an expensive game, and in land casinos it has often deserved it. Surveys collected by the Wizard of Odds found live keno in Las Vegas returning between 65% and 80%, while video keno in San Diego returned between 84% and 95%; its keno rules and returns page (opens in a new tab) summarises those surveys. Online versions publish their own figures, which vary with the pay table and sometimes with the number of spots, so the game rules are the place to check.

If a version does not show its RTP clearly, treat that as a reason to choose another. Our guides to RTP and the house edge explain how to compare games, and which casino games have the best odds puts keno alongside the alternatives.

How many keno spots should you pick?

The number of spots changes the shape of your results more than the average. Few spots mean frequent small wins; many spots mean long losing runs broken by rare larger payouts. The RTP for each spot count is set by the pay table and may be similar across them.

UK rules that apply to online keno in 2026

At UK-licensed casinos, keno is a non-slot casino game. Since 17 January 2025, the extended game design rules mean autoplay is banned, every game must be started by you, each game cycle must last at least five seconds, and your net position and session time must be on screen. The Commission’s speed of play decision (opens in a new tab) sets out the five-second rule, and our table game speed rules page explains it.

Multi-draw features, which play the same numbers for a set number of draws, are common on keno outside the UK but fall foul of the autoplay ban here. The £5 and £2 stake limits apply to reel-based slots, not keno, so each game sets its own stake range. You must be verified as 18+ before playing any version, including demos, and credit cards cannot be used to fund play.

Keno myths and number systems

• Hot and cold numbers. Previous draws do not affect the next one; tracking them changes nothing.
• Picking the same numbers until they hit. Each draw is independent; staying with a set has no advantage.
• Patterns on the board. Rows, columns and clusters have the same chance as any other choice of spots.
• Raising the stake after losses. It increases your exposure to the house edge; the Martingale system page shows why it fails.

Our guide to the gambler’s fallacy explains why these feel convincing, and casino betting systems covers the rest.

Planning a keno session: a worked £20 budget

Say you set £20 and play 4-spot games at 50p on a version with a 93% RTP. The average cost is 3.5p per game, or £3.50 over 100 games. Most of those games will lose or return the stake, and whether you finish ahead depends mostly on whether a 4-catch lands, which happens about once in 326 games. Set the budget and a time limit together, as keno’s quick rounds make time pass fast, and use a deposit limit to back them up.

Where to play online keno UK: licensed options

Keno is not stocked by every UK casino, so search the lobby before you join, and check the operator on the Gambling Commission register. Of our partners’ offers, the latest Casumo offer is the only one paid as bonus funds: 50% of a first deposit of £20 or more, up to £100, with 10x wagering within 7 days and a £5 maximum bet while the bonus is active. Game restrictions apply, so read whether keno counts before relying on it.

PlayOJO’s 80 spins on Big Bass Bonanza (10p each, £10 minimum first deposit, no wagering, not for Northern Ireland) and Coral’s 100 spins at 10p after a £10 slots bet are for slots only. 18+, terms apply. For free, confidential support at any time, call the National Gambling Helpline on 0808 8020 133.

18+. Gambling should be entertainment that costs money, not a way to make it. Set a deposit limit before you play: how to set deposit limits. Free, confidential help: National Gambling Helpline 0808 8020 133.