Return to Player
95.53%
Minimum bet
0.20
Slot category
Video Slots
Variance level
Low
Reels
5
Progressive jackpot
No
Popularity
Maximum bet
200
Game Provider
Booming Games
Bonus features
Yes
Pay lines
20
Theme
Dinosaurs
Spinosaurus Online Slot Game
Spinosaurus is an online slot focused on one of the less-celebrated dinosaurs. It takes players back to a world before humankind, where free spins, several wilds and upgraded symbols may appear—but none guarantees a win.
Theme and Storyline
Enter a volcanic prehistoric world where dinosaurs roam across the reels. The adventure spans forests, plains and swamps, showcasing environments associated with the Spinosaurus and the creatures it faces.
Graphics, sound and animation
Booming Games brings one of its strongest visual concepts to the reels. On desktop and mobile, players encounter photographic dinosaur symbols, including the feared T-Rex and Velociraptor, as well as fossilised footprints. Subtle animation appears when symbols win and features trigger. Spinosaurus continues the prehistoric adventure with a familiar Jurassic Park-style theme tune and sound effects for reel spins and winning combinations. There are no dinosaur roars or wildlife ambience in the background.
Top Casinos to Play Spinosaurus:
How the Gameplay Works
Spinosaurus has a 5-reel layout, with 3 symbol rows on every reel and 20 paylines for winning combinations. Its wild symbol is the ‘Pterodactyl Egg’, which can appear up to 15 times across the reels. Other ways to win include symbol upgrades, Scatter symbols that award free spins, and regular combinations divided into major and minor groups.
The leading symbols are Spinosaurus, Tyrannosaurus Rex, Velociraptor and Triceratops. In that order, 50x, 40x, 30x or 20x times the spin bet is paid for 5 symbols on a pay line. Combinations of 5, 4 or 3 also pay. The review characterises these payouts as very generous.
Lower-value symbols show fossilised dinosaur footprints, though identifying which print belongs to which dinosaur can take some effort. They pay from 6.25x to 0.5x times the spin bet when 5, 4 or 3 appear on a pay line. Of 24 possible combinations, 19 pay more than the spin bet, 2 pay the same, and 3 pay less.
The ‘Pterodactyl Egg’ wild can substitute for any of the 4 major or 4 minor symbols. It does not take part in the symbol upgrade feature and cannot substitute for the Scatter symbol.
Open the paytable to find the rules on one tab and individual payouts on the other. The ‘ ’ sign opens ‘Bet Max’, auto-spins, lightning spins and sound controls.
Bonuses and Free Spins
Free Spins: Landing 3 volcano Scatter symbols on reels 1, 3 and 5 awards 8-12 free spins. Each Scatter displays the number of free spins it awards. If only 2 Scatter symbols land, they turn into wilds. The drawback is that free spins cannot be retriggered.
Symbol Upgrade: This randomly triggered feature turns between 0 and 10 minor symbols into 1 of the major symbols. It may also trigger when 0 symbols are upgraded, teasing a change without altering the layout.
Pterodactyl Egg Wild Feature: In the base game or free spins, the ‘Pterodactyl Egg’ wild may land on the reels between 0 and 15 times. Landing 15 awards 125x times the spin bet.
Bet sizes, RTP and variance
Set the stake using the ‘BET’ -/ option or the coins button. The per-spin minimum is 20.00, and the maximum is 200.00. Spinosaurus has a listed RTP of 95.53%, around half a percent below average, and the review considers its low-variance classification accurate. The reported base-game hit rate averages about 1 every 5 spins, with high-paying symbols helping combinations cover the spin bet. For larger wins, the review points to free spins as the key feature: winnings accumulate without additional spins costing extra, then are paid out when the bonus ends.
Conclusion
In Evan Carrington’s original Casino Ideal review, Booming Games’ Spinosaurus is presented as a dinosaur-themed slot with Scatters, free spins and wilds. The review highlights the substantial values attached to symbol combinations and notes that only 3 combinations pay less than the spin bet. The mechanics are familiar rather than innovative, but the game is considered accessible to new players and a suitable choice for anyone after an easy-to-play mobile slot with attractive, undemanding graphics.
Evan Carrington brings more than 12 years of experience in the iGaming industry, with a focus on reviewing online casinos, assessing slot games and examining player safety. Their work covers casino licensing, RTP, volatility, bonus terms and withdrawal policies. Drawing on practical testing and independent research, Evan provides clear, evidence-based reviews to help players understand gambling platforms, their features and possible risks.
