Best Slots with a Gamble Feature 2026

Slots with an optional gamble step. Gamble features can lose a win entirely; many regulators restrict them.

We currently list 29 slots with a gamble feature from 6 studios, led by BGaming (18), Pragmatic Play (6) and Nolimit City (2). Across the 28 games with a published RTP, the average is 96.41%. Joker’s Million has the highest at 97.34%, while Fire Lightning is lowest at 93.75%. Max wins range from 1,000x up to 40,000x on Power of Merlin Megaways. Of the 23 games with a provider volatility rating, the most common ratings are high (30%), medium-high (30%) and low (17%). 5 of them (17%) offer a bonus buy where it is legal.

29 slots match this list. Rankings use our editorial review score and the published game data; they are not paid placements.

1. Book of Dead – Play'n GO

Book of Dead is the template for the modern "book" slot. Ten free spins with a random expanding symbol is all there is, and that simplicity is its strength: the bonus outcome depends almost entirely on which symbol is picked. A high-paying expanding symbol can fill the screen, while a low one usually produces a modest bonus. Note the very wide range of RTP configurations – the in-game info screen tells you which one a casino runs.

96.21% RTP · High volatility · 5,000x max win

2. Extra Chilli – Big Time Gaming

Extra Chilli builds on Bonanza with a free spins gamble wheel – risk your spins for a chance at more. Unlimited multipliers remain the core. The 96.82% default RTP is among the best for a Megaways game.

96.82% RTP · High volatility · 20,000x max win

3. Power of Merlin Megaways – Pragmatic Play

Power of Merlin Megaways uses tumbling wins and wild-making features on an elemental magic theme. Winning symbols disappear and are replaced until no new wins form. A fiery wild can land on any spin, and the Lightning Bolt feature replaces random symbols with extra wilds.

96.08% RTP · 40,000x max win

4. Book of Shadows – Nolimit City

Book of Shadows is Nolimit City's take on the book format, with a twist: Shadow Rows let you pay extra to add rows and win lines. More rows mean more frequent wins and bigger payouts, at a higher cost per spin.

96.01% RTP · High volatility · 30,338x max win

5. Mechanical Clover – BGaming

Mechanical Clover is a steampunk-styled 3x3 slot from BGaming with five paylines in the base game. It looks retro, but the maths is anything but: BGaming rates it high volatility and lists a maximum multiplier of 24,360x, an unusually high ceiling for such a small grid.

95.42% RTP · High volatility · 24,360x max win