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The RTP (return to player) quoted for a slot isn't always the figure at every casino. Some providers release one game at several RTP settings. This page explains how that works and how to check the version you're playing. For what RTP means in general, see how slots work.
Some providers publish more than one RTP for the same game. For example, Fantasma Games lists its slot Lost Mummy Treasures with "RTP 96.21% / 94.21% / 92.21%", followed by "Subject to market availability, please contact your Account Manager for details" (Fantasma Games game page, checked Oct 16, 2026). The game looks and plays the same. What changes is the share of money wagered that it's designed to pay back over the long run.
In that example, the three settings mean a house edge of about 3.8%, 5.8% or 7.8%. Over a very large number of spins, the lower setting is designed to keep about twice as much of each dollar wagered as the highest one. In a single session, results vary far more than that.
Which version is available depends on the market, as the Fantasma page notes, and on the version the casino offers. Wizard of Odds notes that "the RTP on a single title can be different from one jurisdiction to the next" (Wizard of Odds, slots, checked Oct 16, 2026). A figure in a review or on a provider page may therefore not match the game at your casino. CoolShades hasn't documented which RTP version any specific casino runs, and this page doesn't claim that any casino uses a lower one.
Rules on showing RTP vary by regulator. For example, Great Britain's Gambling Commission requires that information on the likelihood of winning, including "the return to player (RTP) percentage or the probability (likelihood) of winning events occurring", be "easily available before the customer commits to gamble" (UKGC RTS 3, last updated May 7, 2024, checked Oct 16, 2026). That's a UK rule, quoted only as an example of what a regulator can require; the casinos CoolShades covers aren't UK-licensed for Canadian players.
Every setting below 100% keeps a house edge. A higher-RTP version lowers the expected cost of play, but it doesn't make a game pay or make any spin more likely to win. If you play with a bonus, the wagering requirement and game weighting usually matter more: see wagering requirements explained.
Set a money and time limit before you play. Help is free and confidential: see the helpline list for every province on our responsible gambling page.