Zap Attack! Demo & Review

Zap Attack! review

Zap Attack! is a 5x5, 25-line alien slot with expanding multiplier wilds up to x5. The bonus upgrades symbols into high-pays.

Thunderkick rates it High volatility, with a 5,000x cap and a 96.15% RTP.

Expanding multiplier wilds up to x5 can cover whole reels, and the alien bonus upgrades symbols into premiums. Light, colourful sci-fi fun.

Features and bonus rounds

Expanding multiplier wilds
Up to x5.
Symbol upgrades
In free spins.
25 paylines
A 5x5 grid.

Zap Attack! RTP, volatility and max win

RTP: the default return to player is 96.15%, meaning that over a very large number of spins the game is designed to pay back around 96.2 units for every 100 wagered. Some casinos may run a lower configuration; the info screen inside the game shows the exact figure. How RTP works.

Volatility: Zap Attack! is a high volatility slot: expect longer stretches between meaningful wins and larger swings in your balance than on a medium-volatility game. The bonus round carries much of the game's value. Volatility explained.

Max win: the maximum payout is 5,000x the stake. What max win really means.

Pros

  • Solid 5,000x win ceiling
  • Full game playable in the official free demo

Cons

  • High volatility makes sessions swingy
  • Short-session results can differ widely from the RTP

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Zap Attack! FAQ

What is the RTP of Zap Attack!?

The highest published RTP of Zap Attack! is 96.15%. Casinos may be able to configure a lower RTP – always check the in-game info screen.

What is the max win on Zap Attack!?

Zap Attack! has a maximum win of 5,000x your stake. Max wins are extremely rare and should not be expected in normal play.

Is Zap Attack! high volatility?

Zap Attack! is rated high volatility by Thunderkick. Wins are less frequent but can be larger.

Can I play Zap Attack! for free?

Yes. You can play the official Zap Attack! demo on this page with play money – no sign-up or deposit required.

Does Zap Attack! have a bonus buy?

No, Zap Attack! does not offer a bonus buy. The bonus has to be triggered naturally.

Data sources: https://www.thunderkick.com/games/zap-attack/. Figures last verified 10 November 2026. Spotted an error? Tell us.