Zombie Outbreak Slot Review
RTP, volatility and max win
8.2Value score · Very good · how it works
Zombie Outbreak review: PG Soft's 2024 horror slot with expanding Wilds, collectable multipliers and 15 free spins. 96.75% RTP, High volatility, 5,000x max.
- #130by RTP of 1,054 slots
- #17by value of 118 slots from 2024
- #225by value of 1,054 slots
Basic information
| Software | PG Soft |
|---|---|
| Release year | 2024 |
| RTP | 96.75% |
| Volatility | High |
| Max win | x5,000 |
| Hit frequency | Not published |
| Game type | Slot |
| Data verified | 2026-10-15 |
Source: PG Soft game page; RTP database by toolsgambling.com (CC BY 4.0); image: PG Soft promotional image from the official game page. How we collect data · Report a mistake
Zombie Outbreak review
Edited by Daniel MorganFounder & Editor
Zombie Outbreak is a 2024 horror video slot from PG Soft set in a town called Dark Valley. It lists a 96.75% RTP, High volatility and a top prize of 5,000x the bet. No demo plays on this page. The sections cover the uneven reels, Expanding Wilds with multipliers, 15 free spins, session costs and other High volatility games.
How to play Zombie Outbreak
The board has five reels, but the rows are not equal. Reels 1, 3 and 5 show four rows, while reels 2 and 4 show five, so the middle of the grid stands taller than the edges.
The story is a virus that turns the townspeople into zombies, and a band of survivors heading for the city centre. The studio's rules text does not publish a paytable or explain how lines or ways pay, so symbol values are not described here.
Zombie Outbreak Expanding Wilds and multipliers
PG Soft pairs Expanding Wild symbols with three collectable multipliers. When a spin wins, multipliers can be collected from the Expanding Wilds. The studio does not list the three values, how they stack or whether they reset between spins, so the in-game info screen is the place to check those details.
Expanding Wild symbols
Wild symbols that expand, which the studio lists as expanding symbols or reels. They are the source of the collectable multipliers rather than a plain substitute.
Collectable multipliers
Three multipliers are collected from the Expanding Wilds when the player wins. The published text gives neither their size nor the rules for combining them.
Zombie Outbreak free spins
Three Scatter symbols on the reels trigger 15 free spins. That is the full trigger description: the rules text does not state whether the round can be retriggered or whether the multipliers behave differently inside it. With High volatility listed, it is reasonable to read the free spins as the part of the game where larger results are most likely to sit, though the studio does not say so.
Zombie Outbreak RTP and volatility
The single recorded RTP is 96.75%, giving a 3.25% house edge. Staking $1,000 over time costs about $32.50 on average. High volatility means the wins tend to be less frequent, and results spread more widely between sessions.
Over 100 spins the average cost is $0.65 at a $0.20 bet, $3.25 at $1 and $16.25 at $5. With a High label, expect a single session to end far from these means in either direction.
Zombie Outbreak max win
Zombie Outbreak pays at most 5,000x the bet: $1,000 at $0.20, $5,000 at $1 and $25,000 at $5. That is the ceiling for one round, and hit frequency is not published.
Zombie Outbreak vs similar slots
Zombie Blasters (2026) lists the same 96.75% and High volatility but doubles the cap to 10,000x. Shark Bounty (2024) matches both the RTP and the 5,000x ceiling. Geisha's Revenge (2024) lists 96.78% and 5,000x, Halloween Jack lists 96.28% and 7,100x, and Raider Jane's Crypt of Fortune (2021) lists 96.75% with 50,000x.
Pros
- 15 free spins from three Scatter symbols
- Expanding Wilds with three collectable multipliers
- 96.75% RTP, a 3.25% house edge
- Taller reels 2 and 4 with five rows
Cons
- No demo on this page
- Multiplier values and retrigger rules are not published
- High volatility means large swings between sessions
Verdict
Zombie Outbreak builds its design on expanding Wilds, multipliers gathered from them and a 15-spin bonus. The RTP is 96.75% with High volatility and a 5,000x cap, so swings are part of the package. It is paid entertainment with a 3.25% house edge, and the average costs above are the number to plan a budget around.
Sources: PG Soft official game page; RTP, volatility and max win from the open Slot RTP Database.
Slots like Zombie Outbreak
Zombie Outbreak RTP
The data lists one RTP for Zombie Outbreak. Versions are not tracked for PG Soft games, so other versions may exist; check the game's info screen.
- 96.75% $32.50 lost per $1,000
Cost of 100 spins
| Bet | Wagered | Average cost at 96.75% |
|---|---|---|
| $0.20 | $20 | $0.65 |
| $1 | $100 | $3.25 |
| $5 | $500 | $16.25 |
Averages computed from the published RTP; real sessions vary widely around them. RTP calculator
Zombie Outbreak max win, volatility & stats
- Value score
- 8.2 / 10
- Lost per $1,000 (average)
- $32.50
- Max win at $1 bet
- $5,000
- Wins on average
- –
Percentiles compare this game with the 1,054 games in the catalogue. Max win: 5,000×.