Play Jewel Boost Reels Online

Jewel Boost Reels Slot

Quick take: A tight fruit-and-gems slot built around one mechanic — sticky Wild reels that chain into respins. Best for players who want clean high-variance action without a multi-phase bonus round.

Jewel Boost Reels is a 2026 release by Mascot Gaming. It runs on a 5×3 grid with 10 fixed paylines, an RTP of 96.Bets range from 0.10 to 50 per spin.

Sticky Wild Reels & Respin Chain

Wild symbols land only on reels 2, 3, and 4. When one appears it expands to fill the entire reel and locks in place. That sticky Wild reel awards one free respin. If another Wild lands during the respin it also expands, sticks, and adds one more respin to the chain. The sequence continues until a spin produces no new Wild reel.

When multiple Wilds land on the same spin that opens the chain, only a single respin is awarded for that trigger — each subsequent respin then gives a fresh chance to extend things further.

Boost Feature

An optional Boost mode acts like an ante bet: it raises the per-spin cost in exchange for a higher chance of the sticky Wild respin chain triggering. Switch it on when you want the bonus to fire more often; leave it off for standard play.

Gamble Feature

After any win you can enter a card-based guessing game where multipliers climb through ×3, ×4, and ×5. All prizes are capped at 5,000× the stake regardless of how far the chain runs.

Things to Know Before You Play

There is no separate free-spins bonus triggered by scatters. All the variance comes from the Wild respin chain and the optional Gamble. Base-game wins can be infrequent at high volatility, but two or three Wild reels locking in simultaneously can accelerate the respin count fast. The Boost option adds cost every spin, so factor that into your session budget if you use it.

More from Mascot Gaming

Mascot Gaming tends toward high-variance setups across its catalog. If the sticky-Wild mechanic here appeals, the studio's Egyptian titles carry a similar edge — Bastet & Cats and the upgraded Bastet & Cats Deluxe are natural next stops. For something different in feel but the same Mascot intensity, Bamboo Bear and Book of Anksunamun Rockways are both worth a session in demo first.