


- Wild multipliers worth up to 125x
- Free spins bonus offers risk-free games
- Symbols can transform into higher payers

- Quite complex compared to some slots
- Highly volatile maths model influences gameplay
Contents
Zap Attack slot review
Prepare for an alien attack as you enter a world in which little green men are taking potshots at humans and you are looking forward to the payout potential this could offer. Enjoy some intergalactic fun from this 5x5 slot with its wild multipliers, upgrading symbols, free spins bonus, and a max win of 5,000x your bet.
Zoom away with the Zap Attack slot
Names of slots such Fire Hopper give a hint to their theme, with Zap Attack giving you a massive clue that there is a sci-fi theme on offer here. Prepare to meet some little green people from outer space who are prone to zapping humans.
This happens during the free spins bonus and can be far from an unpleasant experience if it happens to you. Read more about this in the bonus section of this Zap Attack slot review.
Out of this world
If you choose to give this choice of slots from Swedish maker Thunderkick a try, you can expect some great graphics, a comprehensive theme, and a twanging guitar soundtrack that really enhances the atmosphere.
The game takes you to a remote town called Roswealth and has the feel of transporting you back to the 1960s and the height of the Space Race.
Zap Attack RTP & volatility
This is a highly volatile slots game with a max win of 5,000x your bet and an RTP of 96.15 per cent.
How to play Zap Attack
Start spinning and hopefully winning with the Zap Attack video slot with the help of the following top tips:
- Start by setting your bet per spin. Stakes start at 0.10 a game.
- The three-bar tab and the trophy symbol allow you to access the paytable and the game’s main menu, while the speaker symbol lets you turn the sounds on or off.
- Play responsibly and make use of safety features if you need them, which include voluntary timeouts and self-exclusions.
How to win at Zap Attack
Zap Attack is played on a 5x5 grid with 25 fixed paylines. You need a minimum of three matching winning symbols for a prize in most cases, the exception being the most valuable alien symbol that only requires you to land two.
There are ten to ace playing cards offering wins of between 1x and 1,5x your bet for five-of-a-kind combinations. The mid-paying symbols are human characters, while the alien mentioned previously is the highest payer. These deliver win multiplier prizes of between 2x and 10x.
Zap Attack bonuses
If you like extras to enhance your base game fun, let’s take a look at the type of Zap Attack bonus features you could unlock:
Regular wild
As you will find in many slots in online casinos, Zap Attack has a 1x1 regular wild symbol that can substitute for any other icon except the scatter symbol to help you create wins.
Expanded multiplier wild
Zap Attack also boasts expanding multiplier wilds. These can grow to cover complete reels and offer win multiplier boosts of 5x, 4x, 3x, or 2x.
Wins featuring the expanded wild have their payout potential increased by the multiplier. If more than one multiplier wild is included in a successful combination, their multiplier values are multiplied. This can lead to a max win boost of 125x.
Scatter symbol
The TV set is the scatter symbol and can unlock a free spins bonus. All you have to do is land three to five scatters during the base game to trigger the feature.
Free spinning fun
Earn 15, 11 or 7 free spins for landing 5, 4 or 3 scatters during the base game. You can also land 5, 4, 3 or 2 scatters during the free spins for 9, 7, 5 or 3 extra bonus games.
During the feature, the alien symbols with their zap guns will shoot humans next to your game grid. Hits are collected on a meter that tracks when you collect the following characters in this order:
- Sheriffs
- Waitresses
- Grandmas
- Farmers
Symbol upgrades
Fill the meter with ten hits and see a human symbol being transformed into the highest-paying alien and stay like this for the rest of your free spins bonus. You will also be awarded an extra free spin.



Zap Attack review summary
Thunderkick is renowned for offering slots with transforming symbols, with Zap Attack following in the footsteps of the likes of Pink Elephants and Pink Elephants 2. Don’t expect a poor copy of a previous game, however, as Zap Attack has plenty to offer in its own right.
Entertaining and exciting
This slot has a great theme that is well carried throughout the base game and bonuses. The effect is an entertaining experience, enhanced by exciting gameplay and plenty of extras such as free spins, the aforementioned upgrading symbols, and expanding wilds.
The quality visuals and complementary soundtrack are perfectly matched by the fun offered by multiplier wilds and symbol collections. This is all topped off by the potential for a max win of 5,000x your bet.
Disclaimer: Zap Attack trademark / license is owned by Thunderkick. This site is not endorsed by Thunderkick.

Slot Name: | Zap Attack |
---|---|
Software: | Thunderkick |
RTP: | 96.15% |
Volatility: | High volatility |
Paylines: | 25 |
Reels: | 5 |
Min Bet (all lines covered): | £0.10 (GBP) |
Max Bet: | £100 (GBP) |
Top Win: | 5000 |
Features: | Free Spins, Expanding Wilds, High volatility, 5 Reels, Stacked Symbols, Symbol Collection, Wild Multipliers, Bonus Meter |
Themes: | Aliens |
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Yes. Thunderkick have a UKGC license and are allowed to offer their games at UK licensed casinos. |
FAQs
Is there a free spins bonus in the Zap Attack slot?
There is a comprehensive free spins bonus in the Zap Attack slot that is triggered by landing at least three scatter symbols during the base game. During the bonus, landing at least two more scatters will reward you with more bonus games. You will collect human symbols during the bonus and ten of these will offer the potential to increase your total win with the help of transforming icons and another bonus game.
Are there wilds in the Zap Attack slot?
Zap Attack features standard wilds, which can substitute for any other icon except the scatter to help create combinations of winning symbols. There are also expanding wilds that can not only grow to cover entire reels but can also offer multipliers worth up to 5x. More than one wild multiplier can be involved in wins, offering the payout potential of a regular payout boosted by up to 125x.
What are the alien symbols in the Zap Attack slot?
These are a major part of this game, especially if you manage to unlock the free spins bonus. The alien is the highest-paying symbol and is the only one to offer prizes for two winning symbols. During the free spins, the alien also shoots at humans and hits can reward you with an extra free spin and the chance to see lower-paying humans transformed into the alien with his max win potential.
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Slot Name: | Zap Attack |
---|---|
Software: | Thunderkick |
RTP: | 96.15% |
Volatility: | High volatility |
Paylines: | 25 |
Reels: | 5 |
Min Bet (all lines covered): | £0.10 (GBP) |
Max Bet: | £100 (GBP) |
Top Win: | 5000 |
Features: | Free Spins, Expanding Wilds, High volatility, 5 Reels, Stacked Symbols, Symbol Collection, Wild Multipliers, Bonus Meter |
Themes: | Aliens |
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Yes. Thunderkick have a UKGC license and are allowed to offer their games at UK licensed casinos. |