RTP (return to player) is the share of all money staked on a slot that the game pays back over millions of spins. At 96% RTP, KSh 1,000 staked returns KSh 960 on average and the slot keeps KSh 40. That KSh 40 is the house edge, and it is the only part of a slot's maths that stays fixed whatever happens in your session.
This guide shows how RTP is calculated, what it costs you in shillings, how it interacts with volatility, and where to find the RTP of the version your casino actually runs.
How RTP is calculated
The studio sets RTP in the game's maths model: the paytable, symbol weights and feature odds together decide how much of every shilling staked comes back as wins. Testing labs then simulate millions or billions of spins to confirm that the long-run return matches the published figure.
The figure is an average over the whole life of the game, across every player. It says nothing about one session. A hundred spins on a 96% slot can return nothing or several times the stake; the 96% only shows up once the number of spins is very large.
House edge is the other side of the same number: 100% minus RTP. A 96% slot has a 4% edge, a 94% slot a 6% edge.
What RTP costs you in shillings
The quickest way to read RTP is as a price. Multiply the total you stake by the house edge. Total staked is your bet size times the number of spins, so it grows much faster than your deposit.
| Total staked | At 94% RTP | At 96% RTP | At 97% RTP |
|---|---|---|---|
| KSh 1,000 | KSh 60 | KSh 40 | KSh 30 |
| KSh 10,000 (500 spins at KSh 20) | KSh 600 | KSh 400 | KSh 300 |
| KSh 50,000 (1,000 spins at KSh 50) | KSh 3,000 | KSh 2,000 | KSh 1,500 |
The gap between 94% and 96% looks small as a percentage, but the cost of play is 50% higher on the 94% game (6% against 4%). Over a month of regular sessions that difference is real money.
RTP across the slots we list
Of the 2,096 slots in our catalogue, 890 carry a published RTP. Their median is 96.01%, and two in three (66%) sit at 96% or higher.
| RTP band | Slots | Share |
|---|---|---|
| Below 94% | 53 | 6% |
| 94–95.99% | 253 | 28% |
| 96–96.99% | 549 | 62% |
| 97% and above | 35 | 4% |
For you this means 96% is the normal level, not a selling point. A slot below 95% is cheaper for the casino than most of the market, and one at 97% or more, such as Blood Suckers (98%) or Mega Joker (99% on this site), is the exception. These are the RTPs the studio lists; a casino can run a lower version (see below).
RTP and volatility: cost against swing
RTP tells you the average cost. Volatility tells you how unevenly that cost is spread. Two slots at 96% cost the same in the long run, but a low-volatility game pays small wins often while a high-volatility game can go hundreds of spins without a meaningful win and then pay most of its return in one bonus.
We found no listed link between the two: the median RTP is 96% for low- and medium-volatility slots and 96.1% for high-volatility slots. Pick volatility for the kind of session you want and your budget, and RTP for the price.
Hit frequency
Hit frequency is the share of spins that return anything, including wins smaller than your bet. Studios publish it for some games only. A high hit frequency can hide a low return per win, so read it next to RTP, never instead of it.
Same slot, different RTP: check the version
Many studios sell the same game in several RTP versions, for example 96.5%, 95.5% and 94.5%, and the casino chooses which one to run. The game looks identical in every version. The only place to see which one you are playing is the game's own information or paytable screen, opened inside the casino.
- Open the slot at your casino, in real-money or demo mode.
- Open the menu (the i or ≡ icon) and find the rules or paytable.
- Look for "RTP" or "theoretical return". If several figures are listed (base game, bonus buy), note the one for the way you play.
If the figure is lower than the studio's headline RTP, the casino runs a reduced version. Playing the same game at a casino that runs the higher version costs you less for the same entertainment.
Progressive jackpots and bonus buys
On a progressive jackpot slot part of every bet funds the jackpot. The RTP of the base game is lower, and the jackpot share is paid out to one rare winner. For a regular player the base-game RTP is the figure that describes the cost.
Slots with a bonus buy often list a separate RTP for the bought feature, sometimes a little higher than the base game. Buying a feature raises the stake per round sharply, so the cost per hour rises even when the RTP does too.
