Zero-Day Attack
96.5%
RTP
10,000x
Max Win
- Min Bet
- 0.1
- Max Bet
- 1000
- Release Date
- July 3, 2026
A Stake Engine title, so there is no maker demo to embed here. On Stake it can be played without an account as Demo (Fun Play).
About this Slot
Zero-Day Attack is a sci-fi slot with 96.5% RTP, high volatility and a 10,000x maximum win. The game uses a tactical diamond grid where shots reveal a progressively hidden fleet placed each round. Reload on Hit restores one ammo when a shot lands, while Double Chance offers a second attempt on certain spins. Four Risk Modes-Low, Medium, High and Extreme-alter volatility and the pace at which features appear during gameplay.
Bonus Play opens a separate mode selection where players can choose stake options to enter the bonus round directly.
Zero-Day Attack Community RTP
Real RTP estimated from rounds contributed by the community, across all uploaders.
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Zero-Day Attack RTP Calculator
Zero-Day Attack has a theoretical RTP of 96.5%. Its volatility is High, so expect long dry spells punctuated by rare, large multipliers. Its win potential is capped at 10,000x your stake. Use the calculator below to estimate your expected return, variance range and risk of ruin over any number of spins.
Zero-Day Attack Variance Simulator
Zero-Day Attack sessions can swing far from its 96.5% average - its volatility is rated High. The simulator runs many virtual bankroll runs to estimate the bust rate, typical drawdown and best/worst outcomes over a set number of spins - compare a cautious bankroll against an aggressive one.
All Wins
No wins on this slot yet.
Play on Stake*Frequently asked questions about Zero-Day Attack
An RTP of 96.5% means Zero-Day Attack is built to pay back around 96.5 for every 100 wagered over millions of spins. Any single session can land far above or below that - use the RTP calculator on this page to model your own bet size and spin count.
Over the long run Zero-Day Attack's house edge is about 3.5% of everything you wager - roughly 3.5 lost per 100 staked. Short sessions vary widely; the calculator above shows the expected loss and variance range for your inputs.
Quite a lot. Because wins cluster around rare big hits, your balance can move far from the 96.5% average in either direction. The variance simulator above shows typical drawdowns, bust rate and best/worst outcomes for your bankroll.
It depends on your bet size and how long you want to play Zero-Day Attack. Use the variance simulator above to test a cautious versus an aggressive bankroll and see how often each survives your target number of spins.