


Zeroday Heist is an online slot from MadLab Gaming with an RTP of 96.01%.
Page updated July 2026
Zeroday Heist is an upcoming title from MadLab Gaming, and the name points fairly clearly toward a tech-crime or hacking-heist theme - likely built around a digital break-in narrative, with vault-cracking or system-infiltration imagery standing in for the usual gemstones or treasure chests that populate more traditional heist slots.
The full mechanical picture for Zeroday Heist isn't confirmed yet. We don't currently have verified data on the reel and row layout, paylines, volatility rating, maximum win multiplier, hit frequency, or betting range, so rather than speculate on those figures, this preview sticks to what's genuinely known and will be updated with a complete breakdown once real details land. What we can confirm is the return to player, which MadLab Gaming has set at around 96%, a solid and competitive figure that puts the game comfortably within the normal range players should expect from a fairly built modern slot.
Heist-themed slots typically build their bonus structure around some kind of progression mechanic - working through stages of a job, cracking successive locks, or building toward a big final payout - and given the tech-crime framing suggested by the name, it wouldn't be surprising to see Zeroday Heist follow a similar structural idea with a digital twist. That said, this is an educated guess based on genre conventions rather than confirmed detail for this specific release, and it shouldn't be read as anything more than that.
Our recommendation for now is to treat Zeroday Heist as one to watch rather than one to judge ahead of schedule. As soon as MadLab Gaming locks in the reel configuration, volatility, hit frequency and maximum win figures, this page will be updated with the full, verified picture of how the game actually plays and what its bonus round involves.
In the meantime, players who enjoy heist and crime-caper themes have plenty of fully documented, ready-to-play alternatives available in free demo mode at johnessyslots right now. Bookmark this page and check back once Zeroday Heist's complete specification has been confirmed for the full review.
Rather than pad this preview with invented mechanics, we'll keep it honest and update it the moment MadLab Gaming's specification sheet becomes available.
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Zeroday Heist has an RTP (return to player) of 96.01%. RTP is the theoretical percentage of total stakes a slot returns to players over a very large number of spins, as published by MadLab Gaming — individual sessions can land far above or below it.
Zeroday Heist is developed by MadLab Gaming.
Verified Data via Johnessy AI