The lab is running. Scientists are building something they probably should not be building.
Mutagenes is a high-volatility video slot from Peter & Sons set in a deep-space laboratory where floating horrors drift past the reels, and every cascade pushes the win multiplier one step higher.
There is a lot going on here: a 6x4 grid, 4,096 ways to win, avalanche cascades, Expanding Wilds, an Infection mechanic, a persistent multiplier in free spins, etc.
Plus, with a 96.3% RTP at Gamdom Casino and a 12,000x win cap, the Mutagens slot is definitely worth checking out.
Gamdom Casino runs Mutagenes at the highest available RTP configuration and supports crypto deposits across Bitcoin, Ethereum, and other major assets. Demo mode is available before any deposit.
Mutagenes is set in a zero-gravity laboratory somewhere in deep space. The narrative centres on scientists racing to engineer the next generation of humanoids. The reels are populated with mutant creatures, laboratory equipment, and stylised card-suit symbols rendered as glowing alien artefacts.
The visual style is dark, detailed, and consistently executed. The atmosphere is closer to science-fiction horror than action, which sets it apart visually from most high-volatility cascade slots.
Field | Detail |
| Software | Peter & Sons |
| Game Type | Video Slot |
| Reels / Rows | 6 reels, 4 rows |
| Ways to Win | 4,096 |
| RTP | 96.3% (Gamdom) |
| Volatility | High |
| Min Bet | $0.10 |
| Max Bet | $200 |
| Max Win | 12,000x |
| Jackpot | None |
*Subject to change
Gamdom runs the game at 96.3%, the highest available configuration. The Golden Bet option runs at 96.4%, and the Free Spins buy carries 96.7%. Volatility is rated high with a hit frequency of 23.27%, meaning roughly one in four spins produces a win.
Mutagenes plays from $0.10 to $200 per spin. The $0.10 floor allows extended low-stakes sessions, while the $200 ceiling gives high rollers meaningful exposure to the 12,000x win cap.
The win cap is 12,000x the bet. This puts it in the upper tier when it comes to Pter & Sons slots.
Mutagenes uses 4,096 ways to win across a 6x4 grid. Matching symbols on adjacent reels from left to right pay regardless of position within the reel. If a reel contains more than one instance of a winning symbol, the win is multiplied by the count of matching symbols on each reel.
All values below are based on a $1 bet.
Symbol | 6 of a kind | 5 of a kind | 4 of a kind | 3 of a kind |
| Red Robot (high 1) | $8.00 | $5.00 | $2.40 | $0.80 |
| Purple Mutant (high 2) | $6.00 | $3.00 | $2.00 | $0.60 |
| Grey Alien (high 3) | $1.80 | $1.20 | $1.00 | $0.60 |
| Blue Syringe (high 4) | $1.80 | $1.20 | $1.00 | $0.60 |
| Green Plant (high 5) | $1.60 | $1.00 | $0.80 | $0.40 |
| Green Gadget (high 6) | $1.60 | $1.00 | $0.80 | $0.40 |
| Card suit A (low) | $1.00 | $0.80 | $0.40 | $0.20 |
| Card suit K (low) | $1.00 | $0.80 | $0.40 | $0.20 |
| Card suit Q (low) | $1.00 | $0.80 | $0.40 | $0.20 |
| Card suit J (low) | $1.00 | $0.80 | $0.40 | $0.20 |
When a winning combination forms, the winning symbols are removed and new symbols fall from above to fill the empty positions. Each new cascade that produces a win increases the overall win multiplier by 1, starting from x1.
The multiplier resets to x1 when no further winning combinations form. A cascade chain that produces four consecutive wins carries a 4x multiplier on the final hit, making extended chains significantly more valuable than the individual symbol payouts suggest.
The Wild substitutes for all symbols except the Scatter. Wilds appear on reels 2 through 6 in both the base game and Free Spins. They do not appear on reel 1.
When an Expanding Wild lands, it expands to cover its entire reel. Expanding Wilds can appear on reels 2 through 6 in both the base game and Free Spins. A single Expanding Wild covering a full 4-row reel during a cascade chain with an elevated multiplier is the primary driver of large base-game wins.
The Infection feature triggers randomly in both the base game and Free Spins. When it activates, one or more low-value symbols on the grid are replaced with high-value symbols before the win is evaluated. This can shift a borderline win into a meaningful payout or create combinations that would not have formed from the original spin result.
Landing 3 or more Scatter symbols anywhere on the reels triggers the Free Spins round. Three Scatters award 7 spins, 4 award 9, 5 award 11, and 6 award 13. During Free Spins, a separate multiplier applies to all wins.
This multiplier starts at x1 and increases by 1 with each winning combination. Unlike the base-game cascade multiplier, the Free Spins multiplier does not reset between spins; it carries forward for the full duration of the feature.
Scatter symbols do not appear during Free Spins, and the feature cannot be retriggered.
Players can pay an additional 0.5x per spin to activate Golden Bet, which increases the frequency of Expanding Wilds and improves the chance of triggering Free Spins. The Golden Bet RTP is 96.4%, marginally above the base 96.3%.
Players can purchase direct Free Spins entry at a cost of 100x their chosen bet size. The buy awards between 7 and 13 free spins at random. The Free Spins buy RTP is 96.7%, the highest configuration available in the game.
At a $0.10 minimum bet, the buy costs $10; at a $200 maximum bet, it costs $20,000.
Mutagenes runs in-browser on iOS and Android without an app. The 6x4 grid scales cleanly in portrait mode, and the cascade animation, Expanding Wild expansion, and Infection overlay all render legibly on mobile screens on Gamdom.
The multiplier resets to x1 after every non-winning spin, so sessions built on long cascade chains pay significantly more than those ending at one or two hits. If the base game is running cold, dropping your stake and waiting for a deeper chain is smarter than burning through a high bet for single-cascade returns.
Golden Bet costs 0.5x extra per spin and runs at 96.4% RTP. The payoff is more frequent Expanding Wilds and a shorter average wait for Free Spins. At lower stakes, the cost is easy to absorb. At higher stakes, the 0.5x premium compounds fast, and you need genuine bankroll headroom to justify it.
Muddy Waters: A post-apocalyptic fishing slot on a 5x5 grid with 40 paylines. The Fishing Feature sends mutant fish crawling across the reels, each building a multiplier prize as it moves but able to escape before you collect. Three tiers of Free Spins layer on Feeding, Hunting, and dynamite mechanics. RTP is 96.49%, max win 20,000x.
Potion Power: A 5x5 grid-pays slot built around avalanche cascades and sticky Wild Multipliers that accumulate value with each cascade and carry it forward until they hit a win. Mystery Symbols randomly convert to matching symbols mid-spin. RTP is 96.53%, max win 20,000x.
More Peter & Sons titles: The full Peter & Sons catalogue is worth exploring. The studio consistently builds around cascade mechanics, escalating multipliers, and high-volatility math models, which is exactly what makes Mutagenes work.
Mutagenes is one of the more mechanically coherent high-volatility cascade slots in the Peter & Sons catalogue. At 96.3% RTP on Gamdom with a 12,000x cap, the value proposition is solid for high-volatility players. The visual identity is distinctive enough to stand out from the crowded cascade slot field.
Slots are games of chance; outcomes are random and cannot be influenced. Set deposit or loss limits before playing. Gamdom's self-exclusion feature is available if you need to step away.
Each time a winning combination forms and symbols are removed, a new cascade begins, and the win multiplier increases by 1. The multiplier starts at x1 and resets to x1 when no further wins form. In Free Spins, the multiplier starts at x1 but does not reset between spins, carrying forward for the entire feature.
Land 3 or more Scatter symbols anywhere on the 6x4 grid. Three Scatters award 7 spins, 4 award 9, 5 award 11, and 6 award 13. The feature cannot be retriggered, and Scatter symbols do not appear during Free Spins.
Infection triggers randomly in both the base game and Free Spins. It replaces one or more low-value symbols on the grid with high-value symbols before win evaluation for that spin. It is not player-triggered and cannot be bought directly.