Dr Zappo

Hacksaw Gaming has 28 September 2026 lined up for Dr Zappo, and the studio has already confirmed a solid set of pre-launch numbers: a 96.31% RTP, medium volatility (rated 3 out of 5), a 10,000x maximum win, and a notably high hit frequency of 45%. That last figure in particular points to a slot designed for frequent, smaller wins alongside the occasional bigger hit, rather than the long dry spells typical of Hacksaw's more extreme volatility releases.

Structurally, the game is set to run on a 5-reel grid evaluated across 14 paylines, with stakes planned between $/€0.10 and $/€100 per spin. Beyond that framework, Hacksaw hasn't yet published a theme breakdown, symbol set, or bonus round details, so much of what Dr Zappo will actually look and feel like remains unconfirmed for now.

Going purely by the name, Dr Zappo points toward a mad-scientist, electricity-themed slot — think laboratory equipment, lightning bolts, and a suitably eccentric doctor character rather than anything darker. That's an inference drawn from the title alone rather than a confirmed art direction, so treat it as a guess until Hacksaw shares more.

With a 45% hit frequency and medium volatility already locked in, Dr Zappo looks set to be one of Hacksaw's more forgiving releases when it lands in late September. Nothing is playable yet, though — johnessyslots will have the full review ready the moment it launches on 28 September 2026, and our current Hacksaw catalogue is there for anyone after a similar frequent-hit slot to play today.