Zap Attack

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Zap Attack Free Demo Play

The immensity of the universe still conceals many mysteries. While extraterrestrial life has fascinated mankind for centuries, its possible existence remains shrouded in mystery. Yet there are signs that we may not be alone…

The Best Online Casinos & Bonuses to Play Zap Attack for Real Money

Zap Attack - Slot Review

This is the fascinating backdrop to Zap Attack, the sci-fi slot developed by Thunderkick and released in September 2023! Join the isolated town of Roswealth, somewhere in the American desert. All seems quiet, until the day strange flying saucers from a distant galaxy appear in the starry sky!

Get ready for an intergalactic adventure featuring a spellbinding soundtrack of theremin and slide guitar. Aliens have invaded the slot’s reels, and their laser beams are blazing everywhere! It’s up to you to line up the right symbols and seize the opportunity to win in space. But beware: a misdirected laser shot can also lose you everything in one Zap!

Zap Attack

Fill up the meter of every character to turn it into an alien.

Zap Attack slot is played on a grid of 5 reels, 5 rows and 25 paylines, and boasts high volatility and an RTP of 96.15%, with the possibility of generating winnings of up to 5000x the stake. Featuring captivating gameplay, this slot includes both Expanding Multiplier Wilds, a symbol upgrade bonus and a bonus buy-in option.

Betting between $0.10 and $100 lets you dive into the action of Zap Attack, and once the bet is placed, you’ll need to line up 3, 4 or 5 identical symbols and from left to right starting from the leftmost reel to win. The green alien is the symbol that pays best, between 1x and 10x the stake, while the sheriff, waitress, grandmother and farmer pay between 0.80x and 5x the stake. There are also the A, K, Q, J and 10 symbols, which pay between 0.30x and 1.50x the bet, and special symbols to trigger features. For example, a Wild represented by the flying saucer can replace all other symbols except the Scatter.

In addition, Expanding Multiplier Wilds and the Bonus Game can be triggered at any time.

PROs & CONs of Zap Attack


  • Win up to 5,000x
  • Multipliers up to 125 points
  • Expanding multiplier wilds
  • Wide betting range


  • We found none

Expanding Multiplier Wilds

These symbols will expand to cover the entire reel, with a x2, x3, x4 or x5 multiplier applied to winnings if they contribute to one or more winning combinations. For example, one Expanding Multiplier Wild with an x2 multiplier and another with an x3 multiplier will give a total multiplier of x6 if a winning combination passes through them. The maximum total multiplier is 5x5x5, i.e. 125x, enough to create some great victories.

Bonus Game

The old TV set represents the Scatter symbol. Find 3 or more to trigger Free Spins. In the bonus, 2 or 3 more Scatter symbols reward an additional number of Free Spins. You’ll win 7, 11 or 15 free spins with 3, 4 or 5 Scatters in the base game and 3, 5, 7 or 9 extra free spins in the bonus. The number of Free Spins won depends on the number of Scatters found.

In the bonus game, the highest-paying Alien symbol can randomly use its laser pistol to shoot the inhabitants in the game zone. Each successful shot will collect the symbol in a counter on the right, gradually upgrading the Sheriff, Grandmother, Waitress and Farmer symbols.

Each time the counter collects 10 successful shots, the corresponding symbol is transformed into a more lucrative Alien until the end of the bonus. The player also receives an extra free spin.

Zap Attack compared to 4 other Thunderkick slots

Slot nameRTPVolatilityMax. winMultipliers
Zap Attack96.15%High5,000xYes
Odin’s Gamble96.1%High19,333xYes
Gods of Rock96%High20,000xYes
Cosmic Voyager96.1%High5,000xNo

Winnings of up to 5000x the stake

Climb aboard the Zap Attack spaceship and try your luck against the invaders from outer space. Behind their terrifying allure, these aliens can be beneficial to players as they pay off the best and transform certain inhabitants into aliens to increase winnings during the bonus round. The battle for Roswealth is just beginning!


Each casino has its own welcome bonus system and special features. To get the best free spins offers, you can check out our list of casinos that offer the best free spin choices for Zap Attack as well as many other online slots!

In Zap Attack there are 25 fixed paylines which are on a 5×5 grid.

We offer a free version of Zap Attack, so you don’t need to worry about spending any money.

Paylines: 25
Grid: 5×5
Betting options: 0.10-100
RTP: 96.1%
Volatility: High
Max. win: 5,000x

Software Thunderkick
Slot Types Video Slots
Reels 5x5
Paylines 25
Slot Game Features Bonus Buy, Expanding Wilds, Free Spins, Multipliers, Scatters, Symbol Collection, Symbol Swap, Wild Symbol
Min. Bet 0.10
Max. Bet 100
Slot Themes Aliens, UFO
Slot RTP 96.1%
devices Mobile versionTablet versionDesktop version
Zap Attack Slot by Thunderkick

Game Winnings and Payouts

Zap Attack Alien Symbol

x5 = 10.00

x4 = 3.50

x3 = 2.00

x2 = 1.00

Zap Attack Policeman Symbol

x5 = 5.00

x4 = 2.00

x3 = 1.40

Zap Attack Girl Symbol

x5 = 4.00

x4 = 1.80

x3 = 1.20

Zap Attack Granny Symbol

x5 = 3.00

x4 = 1.60

x3 = 1.00

Zap Attack Gardener Symbol

x5 = 2.00

x4 = 1.40

x3 = 0.80

Zap Attack Ace Symbol

x5 = 1.50

x4 = 0.70

x3 = 0.40

Zap Attack King Symbol

x5 = 1.50

x4 = 0.70

x3 = 0.40

Zap Attack Queen Symbol

x5 = 1.00

x4 = 0.60

x3 = 0.30

Zap Attack Jack Symbol

x5 = 1.00

x4 = 0.60

x3 = 0.30

Zap Attack Ten Symbol

x5 = 1.00

x4 = 0.60

x3 = 0.30


About the author

Kate Ko

Kate Ko / Games editor

last updated

Kate joined CorrectCasinos' game team in the late 2021. She's here to find and review all new and upcoming slots titles, so you can just enjoy their free play.

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