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Alien Invaders

Alien Invaders · Pragmatic Play
8.9/10
AI Slot ratingGREAT
★★★★★★★★★★
RTP96.50%
VolatilityHigh
Max win5,000x
Reel layout5×5
Bet range0.2 – 240
Free spins chance1 / 207
Bonus buyAvailable
Release date2025.07.10
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Alien Invaders Free Slot Demo review

Alien Invaders is a 5×5 tumbling game that depicts an alien invasion in a cartoon style. Wins are decided based on the bottom row, a unique approach, so just a few rounds of the free slot will get you comfortable with the rules.

Alien Invaders official video

On your first spins

Each reel drops 3 to 5 symbols, so the screen height is uneven. At first it is confusing to tell where the wins are, but you only need to watch the bottom row. Base game wins land often, about once every 2.9 spins on average. Still, this is a high volatility game.

How wins happen

When 3 or more matching symbols line up on the bottom row, those reels are activated. Then all matching symbols on the activated reels are grouped as wins and explode. When a scatter reaches the bottom row, it also explodes symbols touching it horizontally, vertically and diagonally. When the reel 3 wild reaches the bottom row, it pays a win and can carry a multiplier of up to 25x.

How the multiplier builds up

The base game starts every spin at 1x, and each time 10 symbols explode in that spin, it goes up by +1x. When a wild reaches the bottom row, the wild’s multiplier is also added to the total multiplier. The longer the tumbles continue, the more noticeably the multiplier grows.

Once you enter the bonus round

3 scatters start 7 free spins, and each additional scatter gives 3 more. In free spins, the multiplier is not reset between spins and keeps carrying over. The wild multiplier also grows up to 100x, so each spin carries more weight as the round goes on. It triggers about once every 207 spins on average.

This game by the numbers

A win over 1,000x comes roughly once every 73,000 spins on average, and the 5,000x max win is about 1 in 27.47 million. There are two bonus buys, 65x and 400x, and the ante bet is 1.25x. Even among Pragmatic Play slots, its rules are unusual, so it helps to get familiar with them in the demo first. The bottom row activation and the accumulating multiplier work together, which suits players looking for a new approach.

Pros

  • A fresh win mechanic based on the bottom row
  • The multiplier keeps carrying over during free spins
  • There is a relatively cheap 65x buy option

Cons

  • The win rules feel unfamiliar at first
  • High volatility means big swings in results

Alien Invaders Free Slot Demo 전체 스펙

ProvidersPragmatic Play
Release date2025.07.10
RTP
Volatility
Reel layout5×5
Max win
Bet range0.2 - 240 (ante up to 300)
Bonus Buy
Ante Bet1.25x
Base hit frequency1 / 2.9
Free spin odds1 / 207
Max win odds1 / 27.47 million
MechanicsExpanding wilds, free spins, multipliers, tumbling, multiplier wilds
ThemeAdventure, aliens, cartoon, sci-fi, space

Key features

FEATURES
▁

Bottom Row Activation

If 3 or more matching symbols land on the bottom row, all matching symbols on those reels win.

+1

Accumulating multipliers

Each time 10 symbols explode, that spin’s multiplier goes up by +1x.

W

Multiplier wilds

The reel 3 wild carries a multiplier of up to 25x in the base game and up to 100x in free spins.

7

Free Spins

3 scatters give 7 spins, each extra scatter adds 3, and the multiplier carries over between spins.

Frequently Asked Questions

FAQ

Does the free demo work without sign-up?

AI SlotYes, you can spin it right away on AI Slot without signing up.

What happens when a scatter reaches the bottom row?

AI SlotSymbols touching the scatter horizontally, vertically and diagonally explode together.

How much does the ante bet cost?

AI SlotIt is 1.25x your bet. You can check the detailed effects in the in-game info.

There are two bonus buys. What is the difference?

AI SlotThe price is split into 65x and 400x. Please check the buy screen for the detailed differences.

What RTP versions are there?

AI SlotThere are three: 96.50%, 95.50% and 94.50%.

Can I play on mobile?

AI SlotYes, it opens right in your smartphone browser.