Slot RTP Comparison Tool See Exactly What Separates One Slot From Another

Why comparing RTP alone is misleading

RTP is the cleanest single number in slots, which is exactly why it gets over-used. It tells you one thing precisely: the proportion of everything staked that a game returns to players over a very large number of spins. A 96.50% slot costs you an average of £3.50 per £100 wagered; a 94.50% version of the same game costs £5.50. That gap is real, it compounds, and it's the single most useful thing to check before you play.

But it says nothing about how that return arrives. Two slots can share an identical RTP and behave like completely different games. One pays small amounts constantly and drifts your balance down slowly; the other pays almost nothing for hundreds of spins and then hands over a large win that drags the average back up. Same long-run figure, wildly different sessions — and the second one is far more likely to empty your balance before the average has any chance to assert itself. Our bankroll simulator shows this directly: at a fixed 96% RTP, moving from low to high volatility takes the chance of losing a £100 bankroll over 500 spins from roughly 7% to over 50%.

Read the two RTP rows separately

The table gives you Max RTP, Highest live RTP and Lowest build — and the spread between them is the whole point. Max RTP is the best version the provider ships; Highest live RTP is the best build we've actually found running at a monitored casino; Lowest build is the worst configuration a casino can legally deploy. Many studios release the same game in several RTP configurations, and operators choose which one to license — so the headline figure quoted in a review is frequently not the figure you'd be playing.

Starburst is the clearest example in this dataset. NetEnt's specification tops out at 96.09%, but no casino we monitor currently runs that build; the best live version sits at 94.09%, and the worst at 90.05%. If you compare on spec alone you'd rate it two full points better than it is in practice. Always check the live figure, and check it for the specific casino you intend to play at.

What to do with the comparison

Use the RTP rows to narrow the field, then let volatility make the final call based on how you actually want to play. If you want a bankroll to last an evening, a low-volatility game at a slightly lower RTP will usually serve you better than a high-volatility one at a slightly higher RTP. If you're staking small and playing for a rare large win, the reverse holds. Neither is the "right" answer — but choosing without knowing the volatility is just guessing.

Once you've picked a game, run the numbers on it. The RTP calculator converts a percentage into the pounds it costs over your actual stake and spin count, and the bankroll simulator shows how volatility changes the shape of a session. Then use the slot database to find which casinos run the higher build.