Dinosaur-activated reels and Mystery Symbols that shift between four outcome types drive Jumpasaurs! by Jinx Gaming. Each base game spin highlights between one and three reels with a dinosaur at the base; Mystery Symbols landing on those activated reels can resolve to Coins, a regular Wild, a Wild Multiplier, or a Scatter. Extinction Spins - the free spins mode - activates all five reels and is the only phase where the 10,000x max win is reachable. Medium-High volatility with a 28.68% hit frequency makes this a patient slot that can produce concentrated value in bonus rounds. Crypto-compatible on desktop and mobile.
What is Jumpasaurs!?
Jumpasaurs! is a 5x5 video slot from Jinx Gaming with a 94.25% RTP, medium-high volatility, and a top win of 10,000x your bet. Its standout mechanic is the activated reel system, where 1-3 reels are highlighted each base game spin and Mystery Symbols landing on those reels resolve to one of four outcomes: Coins, Wild, Wild Multiplier, or Scatter.
The game runs on 19 paylines across a 5x5 grid and uses a classic fruit-and-lucky-symbols paytable. Extinction Spins, awarded when 3 or more Scatter symbols land, activate all five reels with dinosaur mascots and increase Mystery Symbol frequency for 8 or more free spins. A feature buy option is available at Wild.io for direct bonus entry.
Who will enjoy this game the most?
You will probably enjoy this game if you like:
- Medium-high volatility players who want activated-reel mechanics creating per-spin variation in which reels carry Mystery Symbol potential
- Classic symbol fans: the paytable uses fruits, clovers, horseshoes, bells, and sevens rather than mythological or dark fantasy imagery
- Feature buy users who want direct Extinction Spins access without accumulating Scatter symbols naturally
- Players who enjoy Mystery Symbols with multiple possible outcomes rather than a fixed conversion type
- Crypto players at Wild.io with BTC, ETH, SOL, and 10 other currencies supported
How To Play Jumpasaurs! Slot - Step By Step
Head to Wild.io and create a free account to start playing Jumpasaurs!.
- Set your stake and spin the 5x5 grid across 19 paylines. Before each spin, 1-3 reels are highlighted as activated - a dinosaur mascot appears at the base of each active reel.
- Mystery Symbols can land on any reel but only resolve on activated reels. When a Mystery Symbol lands on an activated reel, it reveals one of four outcomes: Coins (an instant credit award), Wild, Wild Multiplier, or Scatter.
- Wild Multiplier outcome: the revealed Wild carries a multiplier value that applies to any win it contributes to, adding a compounding layer beyond a standard substitution Wild.
- Collect Scatter symbols to trigger Extinction Spins. Landing 3 or more Scatters activates the bonus round with 8 initial free spins.
- During Extinction Spins, all five reels are active with dinosaur mascots and Mystery Symbol frequency increases significantly compared to the base game.
- Use the feature buy option at Wild.io for direct Extinction Spins access. The 10,000x max win is only achievable during the bonus round.
You can also deposit using various supported payment methods.
Jumpasaurs! Slot Theme & Graphics
Jumpasaurs! uses a blocky, arcade-style presentation for both its prehistoric mascots and its classic paytable symbols. The dinosaur characters at the base of activated reels are colorful cartoon versions: rounded, friendly-looking creatures rather than realistic predators. The five reels each have their own dinosaur design visible when activated. The low symbols (fruits and card-style icons) and high symbols (clovers, horseshoes, bells, sevens) use the same blocky aesthetic, keeping the visual language consistent.
The 5x5 grid sits against a stylized jungle backdrop with palm fronds and prehistoric foliage. Mystery Symbol reveals animate with a question-mark-to-reveal effect per symbol position. During Extinction Spins, all five dinosaur mascots are active simultaneously, and the visual density of activated reels signals the increased Mystery Symbol potential without requiring a separate rule explanation. On mobile the 5x5 format in portrait mode is readable and the dinosaur activation indicators are visible without zooming.
Jumpasaurs! Slot Symbols & Paytables
Ten regular pay symbols fill the 5x5 grid: five fruit icons as low-pays and five lucky classic symbols as premiums, with Mystery Symbol as the special mechanic driver.
Low Value Symbols
The five low-paying symbols are grapes, cherries, lemons, oranges, and apples. These classic slot machine icons pay 2x-5x the bet for five-of-a-kind across the 19 paylines. They appear frequently across the 5x5 grid and sustain base-game hit frequency during spins when activated reels resolve Mystery Symbols to Coins or Wilds. On a medium-high volatility slot they form the backbone of regular session return.
High Value Symbols
Five classic lucky symbols form the premium tier: clovers, horseshoes, bells, and sevens, with the sevens at the top paying 100x for five-of-a-kind. The range from clovers at 25x to sevens at 100x means the symbol landing during a Wild Multiplier resolution is significant. A Wild Multiplier substituting for the sevens symbol across five-of-a-kind positions during Extinction Spins is the type of combination that approaches the 10,000x ceiling.
Special Symbols
Mystery Symbols are the core special symbol. They land on any reel but only resolve on reels currently activated by a dinosaur mascot. On an activated reel, a Mystery Symbol reveals one of four outcomes: Coins (instant credit award), Wild (standard substitution), Wild Multiplier (a wild with an attached multiplier value applied to wins it contributes to), or Scatter (counts toward free spins trigger). Multiple Mystery Symbols on the same activated reel resolve independently. During Extinction Spins all five reels are activated, so Mystery Symbols on any reel resolve rather than the 1-3 base game activation limit.
Jumpasaurs! Bonus Feature & Special Features
Activated Reel and Mystery Symbol System
Each base game spin, between 1 and 3 reels are designated as activated reels, indicated by a dinosaur mascot at the base of the column. Mystery Symbols that land on the grid resolve only when they land on an activated reel. The four possible Mystery Symbol resolutions are: Coins, which award an instant credit payout; Wild, a standard substitution symbol; Wild Multiplier, which is a Wild carrying a multiplier value that compounds any win it joins; and Scatter, which contributes to the Extinction Spins trigger count. The number of activated reels (1-3) changes each spin, meaning the proportion of the grid where Mystery Symbols can produce bonus outcomes varies. Spins with all three activated reels on the left, center, and right positions give the widest Mystery Symbol coverage.
Extinction Spins
Landing 3 or more Scatter symbols - including those revealed by Mystery Symbols on activated reels - triggers Extinction Spins, awarding 8 initial free spins. During the bonus all five reels are activated simultaneously, removing the base game restriction of 1-3 active reels. This means every Mystery Symbol that lands on any reel resolves to one of its four outcomes rather than being a blank for non-activated positions. The increased Mystery Symbol activity during Extinction Spins is the primary differentiator from the base game and the only phase where the 10,000x max win is reachable. A feature buy option available at Wild.io allows direct Extinction Spins entry.
Pros & Cons of Jumpasaurs!
Here is a quick overview of the key strengths and weaknesses of Jumpasaurs!.
How to Deposit, Withdraw Winnings & Gamble Responsibly at Wild.io
Getting started with Jumpasaurs! at Wild.io takes only a few steps. Follow the Wild.io deposit guide if you need the full walkthrough:
- Create a free account at Wild.io.
- Open your crypto wallet from the account menu.
- Make a deposit using your preferred cryptocurrency.
- Launch Jumpasaurs! from the games library.
- Choose demo mode or real-money play, then set your stake and spin.
Withdrawing winnings is just as fast: return to your wallet, pick your payout coin, and confirm. See Wild.io withdrawal times for typical processing speeds.
To help players stay in control, Wild.io includes several responsible gambling tools:
- Deposit limits
- Session reminders
- Self-exclusion tools
- Reality checks
- Account time-outs
Before you start playing, set a clear budget, self-assess your habits, and stick to limits that feel comfortable. Take regular breaks, avoid chasing losses, and play responsibly. Gambling should always be treated as entertainment rather than a way to make money.
Jumpasaurs! FAQ
What is the RTP of Jumpasaurs!?
Jumpasaurs! has a Return to Player (RTP) of 94.25%, meaning it theoretically returns 94.25% of all wagered amounts to players over time.
What is the volatility of Jumpasaurs!?
Jumpasaurs! has medium-high volatility. This means payouts can be less frequent but bonus features may produce larger wins.
What is the maximum win in Jumpasaurs!?
The maximum win in Jumpasaurs! is 10,000x your bet. Always play responsibly and within your budget.
Who developed Jumpasaurs!?
Jumpasaurs! is developed by Hacksaw.
Does Jumpasaurs! have a bonus buy feature?
No, Jumpasaurs! does not include a Bonus Buy feature.
Does Jumpasaurs! have a Free Spins Round?
Yes. Jumpasaurs! includes a Free Spins round.
Does Jumpasaurs! have a jackpot?
No. Jumpasaurs! does not feature a jackpot. Its top payout is a fixed maximum win of 10,000x.
How many paylines does Jumpasaurs! have?
Jumpasaurs! uses a 19 paylines system.
Can I play Jumpasaurs! for free (demo) at Wild.io?
Yes! Wild.io offers a free demo version of Jumpasaurs! with no registration or deposit required. Simply visit the game page and click Play for Free to try it instantly.
Can I play Jumpasaurs! with real money at Wild.io?
Yes! Wild.io lets you play Jumpasaurs! with real money using cryptocurrency. Just sign up, make a deposit, and start playing instantly.
Can I play Jumpasaurs! with crypto at Wild.io?
Yes! Wild.io is a crypto casino, so you can play Jumpasaurs! using coins like BTC, ETH, or USDT right after making a deposit.
What cryptocurrencies can I use to play Jumpasaurs! at Wild.io?
Wild.io accepts a wide range of cryptocurrencies, including Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), Dogecoin (DOGE), Bitcoin Cash (BCH), XRP (XRP), Tron (TRX), Tether (USDT), BNB (BNB), USD Coin (USDC), Cardano (ADA), and Solana (SOL). Just pick your preferred coin in your wallet and deposit before playing.
Can I play Jumpasaurs! on mobile at Wild.io?
Yes, Jumpasaurs! is fully optimized for mobile play on both Android and iOS devices via your web browser, with no download required.
