RTP (Return to Player) tells you the long-run percentage of stakes a slot game pays back across millions of spins. Industry average is around 96%. A slot with 97% RTP returns £97 for every £100 staked over very large sample sizes — the casino keeps £3.
Critical caveat: RTP applies only over the long run. Short-term variance dominates individual sessions and a 96% RTP slot can pay back zero in a 100-spin session.
Some studios ship multi-RTP variants of the same slot — Pragmatic Play notoriously offers 96.5%, 95.5% and 94.5% configurations of identical-looking games and the operator chooses which to load. Always check the in-game help screen for the RTP at the casino you're playing at, not the headline figure on a review site. Hacksaw Gaming and a small number of other studios operate single-RTP transparency policies.
Example usage
- Starburst 96.09% RTP
- Mega Joker 99% RTP (highest published RTP commonly available in UK)
Related terms
- Hit frequency — The percentage of spins that result in any winning combination on a slot.
- House edge — The mathematical advantage the casino holds on each game — equivalent to 100% minus RTP.
- Multi-RTP slot — A slot shipped in several RTP configurations of which the operator selects one — often 96.5%, 95.5% or 94.5%.
- RNG (Random Number Generator) — The certified random-number generator that determines slot, table and instant-game outcomes — independently audited.
- Volatility — How frequently and in what size a slot tends to pay out — high volatility means rare big hits.