Our review of Jumpasaurs! cuts through the marketing and looks at what matters: how it plays and how it pays. This is a Jinx Gaming slot, sitting firmly in the medium high variance bracket and paying back 95.57% RTP. It's built around a prehistoric theme and plays out on 5 reels and 40 paylines. If everything lines up, Jumpasaurs! can pay up to 5,000x your bet. Wins land at roughly a 30% hit rate, shaping how the sessions feel. But is it actually worth playing? Read on.
Written by Emma Roberts · Last updated: February 2026
This title, Jumpasaurs!, is the work of Jinx Gaming, wrapped in a prehistoric theme. It runs on a 5-reel grid running 40 paylines with a medium high volatility profile, and 95.57% RTP.
Dig into the bonuses and Jumpasaurs! starts to stand out. Look out for scatter symbols that unlock free spins and extra bonus rounds. The medium high volatility strikes a middle ground that should suit most playing styles. All told, it's a solid entry in the Jinx Gaming catalogue.
At 95.57%, the RTP is slightly below the industry average of ~96%. While this is typical for many popular slots, players should be aware of the slightly lower theoretical return.
Medium-high volatility means wins come less frequently but tend to be larger when they hit. Players should be prepared for dry spells between bigger wins, requiring a moderate bankroll.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Jumpasaurs! features scatter symbols that can trigger free spins rounds. Landing the required number of scatter symbols anywhere on the reels activates the free spins feature, giving you extra chances to win without additional bets. During free spins, special modifiers may apply to boost your winning potential.
3.0 / 5 — Good
Jumpasaurs! by Jinx Gaming is a solid offering that delivers good entertainment value. The 95.57% RTP combined with medium high volatility creates a well-balanced gaming experience.