Zombie Outbreak
- RTP
- 96.76%
- Volatility
- HIGH
- Max win
- 5,000×
- Hit freq
- -
- Grid
- -
- Bet
- -
- Released
- 2024-06-11
A playable demo is not available in your region.
Our take
PG Soft's high-volatility 5×5 clustered-grid horror slot with cascading reels, expanding zombie wilds, and a 5000× cap at 96.76% RTP.
Zombie Outbreak takes players into a biohazard lab where a mad scientist has unleashed chaos. Developed by PG Soft and released in November 2024, this five-reel, variable-row slot (ranging from 4 to 5 symbols per reel) plays with 1600 paylines and a 96.76% RTP. The theme is intentionally dark: a deranged professor, mysterious potions, grotesque figures in bio-chambers, and the scientist's own transformation into a zombie version of himself.
The core mechanic centres on the expanding zombie scientist wild, which expands randomly and applies up to three random multipliers to wins. The game uses cascading reels (tumbling symbols) to create consecutive win opportunities. With a 25.25% hit frequency and high volatility, expect long dry spells punctuated by multiplier-driven cascades. The maximum win of 5000× your stake is substantial, though the high volatility means reaching it is a rarity. Free spins and bonus rounds exist, though specific frequency data is sparse in available sources.
The lab aesthetic and cascading mechanic appeal to players who enjoy horror themes and modern reel dynamics. However, the high volatility demands a bankroll suited to extended play without returns.
Pros
- Expanding zombie wilds with up to 3 random multipliers create cascading win potential
- High RTP of 96.76% with solid 25.25% hit frequency despite volatility
- Modern cascading reel mechanic adds depth beyond traditional payline slots
- 5000× maximum win offers meaningful upside for volatility tolerance
Cons
- High volatility suits only players with adequate bankroll
- 1600 paylines and complex reel mechanics may overwhelm casual players
- Bonus round frequency data is not clearly specified in sources
Math & maxes
Math breakdown
- Volatility score
- 3 / 5
- Max win
- 5,000x the stake
FAQ
What are the main features of Zombie Outbreak?
The game's core features include expanding zombie wilds with random multipliers, cascading reels that create consecutive wins, and variable rows that generate up to 1600 paylines.
What is the maximum win in Zombie Outbreak?
The maximum payout is 5000 times your stake.
How volatile is Zombie Outbreak?
The slot has high volatility, meaning infrequent but potentially larger wins. The hit frequency is 25.25%.
What does the expanding zombie wild do?
The zombie scientist wild expands randomly across reels and applies up to three random multipliers to any wins created.
What is the RTP of Zombie Outbreak?
The RTP is 96.76%, which is above-average for modern slots.
Is Zombie Outbreak available on mobile?
PG Soft titles are typically mobile-optimised, though this is not explicitly confirmed in sources.





