Dr Zappo (Hacksaw Gaming): Release Date, RTP and Max Win
Published 29 September 2026. A mad scientist takes over the lab: Hacksaw Gaming's new slot fires EyeBall Wilds across the grid, bounces them off Energy Fields and stacks multipliers up to x200 - with a 10,000x ceiling on top.
Key facts
| Provider | Hacksaw Gaming |
|---|---|
| Released | 29 September 2026 (general release; early access at crypto casinos since late August) |
| Layout | 5 reels, 14 paylines |
| RTP | 96.31% (default) |
| Max win | 10,000x bet |
| Volatility | Medium |
| Bets | 0.10 - 100 |
| Bonuses | EyeBall Wilds, 3 Energy Fields, three bonus rounds - Eyeconic, No-Brainer and It's Electrifying - plus bonus buy |
Hacksaw Gaming had not published the official game page at the time of writing (checked 29 September 2026). The figures above are cross-checked across independent outlets (links below), which agree on every key number.
What is new in Dr Zappo
The headline mechanic is the EyeBall Wild. EyeBall symbols land on the bottom row and shoot in one of three directions - up, diagonally left or diagonally right - turning every pay symbol in their path into a wild. Some wilds reveal additive multipliers from x2 to x200, and when several wild multipliers take part in the same win, their values are added together before the payout.
Three Energy Fields sit on the left, top and right edges of the grid. An EyeBall that hits a field bounces off and keeps travelling at the same angle; a head-on hit sends it straight back the way it came, adding multiplier values to the wilds it created along the path. Three bonus rounds - Eyeconic, No-Brainer and It's Electrifying - build on the same system, and a bonus buy is available for direct access.
The math is medium volatility with a default RTP of 96.31% and a maximum payout of 10,000x the bet. The game went into early access at crypto casinos in late August - Stake ran a tournament on it in the first half of September - before the general release on 29 September.