Invaders Megaways Slot Review

Expert Rating: 5 out of 5
Review by Chris Taylor
Last update 3rd September 2021
Review by Chris Taylor
Last update 3rd September 2021

Watch out for little green aliens in the Invaders Megaways slot, a 6 reel game from WMS where the number of ways to win can reach 1 million. This UFO adventure comes with plenty of extras. On each spin, 1 symbol is picked at random. All examples of this symbol that land on reel 2 through 5 will turn wild. The Unicow can expand the reels and boost the number of Megaways to between 168,070 and the magical 1 million. The main extra is the Free Spins feature with a special wild symbol. That wild comes with modifiers too. Find out more in our complete Invaders Megaways review.

Invaders Megaways Max Win
75,798 x bet
Type of Slot
Megaways Slot
Up to 1 million
Stakes Range
10p to £10
Bonus Features
Yes (4)
Free Spins/Multiplier
Max Win
75,798 x

Invaders Megaways

Recommended Casino

Duelz Casino
  • 100% Bonus up to £100 + 100 Free Spins
  • 800+ Slots
  • Instant Cashouts
T&C Apply

18+ new players only. Minimum deposit: £20. Maximum £100 bonus. Max bet with an active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Max redeemable from welcome bonus: £500. 100 Free Spins are given out 20 per day on Book of Dead for 5 days in a row, log in each day is required. Max Free Spins winnings: £100. Winnings from Free Spins are credited as bonus money with a wagering requirement of 45 times. Free Spins expire after 3 days. Some games may not be played with a bonus. Games may contribute differently when wagering a bonus. Play Responsibly! #ad

Best casinos to play Invaders Megaways slot with real money

Casino Lab
  • £100 Bonus + 300 Free Spins
  • 1,500+ Slot Games
  • 12-24 Hour Cashouts (inc. PayPal)
T&C Apply

18+. New players only. £10 min deposit. £5 Max Bet using bonus. 40x wagering applies. Bonus valid for 14 days. 30 spins will be credited instantly upon qualifying deposit + then 30 per day for 9 days on pre-selected games. Free spins valid for 72 hours from credit. Max free spins winnings £100. Ewallets excluded. #ad

LeoVegas Casino
  • 10 No Deposit No Wager Spins
  • £100 + 50 Wager-Free Spins
  • 2,650+ Slots
T&C Apply

New players only. No deposit needed. 3 days to claim & 3 day expiry. 10x free spins worth 10p on Book of Dead. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-Free Spins x10p to added to Starburst with each qualifying deposit, 3 day expiry. 18+ #ad

Novibet Casino
  • Exclusive 100% Bonus up to £150
  • + 35 Free Spins (No Wagering)
  • 4,000+ Slot Games
T&C Apply

18+ | KYC verified | New UK players only | Min deposit £10 | 100% bonus up to £150 + 35 Free Spins. | 35 free spins on Book of Dead spin value=£0.10 | Min 35x wagering | Bonus code: BEST20 | Skrill & Neteller deposits Excluded | Bonus & Free Spins Valid for 30 days | T&C’s apply | General Promotions Terms apply #ad

Invaders Megaways Slot RTP, Details & Wager Limits

Reels/Paylines: 5 reels + up to 1 million ways to win

Stakes Range: 20p to £10 per spin

Max Win: 75,798 x stake per spin

RTP: 96.3%

The Invaders Megaways slot is played using Big Time Gaming’s Megaways engine. With 6 reels, the number of symbols that land on each reel changes with each spin. The more symbols, the more active Megaways.

On base game spins, between 2 and 7 symbols can appear on each reel giving you up to 117,649 Megaways. Winning combinations are created by landing 3 or more matching symbols or wilds on adjoining reels, starting from reel 1.

You can blast off into space at stake levels that range from between 10p and £10 per spin. Click on the coins icon to the right of the reels then use the + and – tabs to adjust your bet. To open up the paytable, click on the ? to the left of the reels.

Payout amounts are shown in cash and adjust as you change your stake. It’s all nice and straightforward to follow. There’s a simple Auto Play function where up to 100 autospins with loss and single win limits can be chosen.

The Invaders Megaways RTP is 96.3% which is above the 96% average. Highly volatile, the bigger wins will come from the free spins as you can play with up to 1 million Megaways and multipliers up to 256x.

The maximum win is 75,798 x your total stake per spin which is very high for a WMS and Megaways slot game. .

Theme – Audio & Design Features – An outer space adventure

Theme: Space

High Value Symbol: Invaders Logo

Compatibility: Mobile, Tablet, Desktop


As a space/cow theme, the design in the Invaders Megaways slot is very good. It feels like a modern-day version of the classic 1950s alien invasion movies. Inspired by the classic Space Invaders arcade shooter game, it follows on from WMS’ Invaders from the Planet Moolah slot which is a Las Vegas classic.

The glossy visuals are very nicely done and have a light-hearted feel. There’s a rather eerie soundtrack pumping away which you spin which complements the visuals superbly. This is a terrific-looking slot.

Set against a rural backdrop with fields full of mysterious crop circles, the reels are made up of lower value A to 9 symbols as well as ray guns, a flying cow, a little green man and an eccentric looking scientist. The top paying symbol is the Invaders logo which awards 4 x your total stake if you land 6 in combination.

Transforming wilds are blasted into the middle reels on each spin. Rounding out the symbols is a bright orange planet which is the bonus scatter.

Symbol Payout
invaders-megaways-slot-9-symbol9 3, 4, 5 or 6 = 0.04, 0.08, 0.12 or 0.2 x stake
invaders-megaways-slot-10-symbol10 3, 4, 5 or 6 = 0.04, 0.08, 0.12 or 0.2 x stake
invaders-megaways-slot-j-symbolJ 3, 4, 5 or 6 = 0.04, 0.08, 0.16 or 0.24 x stake
invaders-megaways-slot-q-symbolQ 3, 4, 5 or 6 = 0.04, 0.08, 0.16 or 0.24 x stake
invaders-megaways-slot-k-symbolK 3, 4, 5 or 6 = 0.04, 0.08, 0.2 or 0.28 x stake
invaders-megaways-slot-a-symbolA 3, 4, 5 or 6 = 0.04, 0.08, 0.2 or 0.28 x stake
invaders-megaways-slot-gun-symbolGun 3, 4, 5 or 6 = 0.08, 0.16, 0.4 or 0.8 x stake
invaders-megaways-slot-cow-symbolCow 3, 4, 5 or 6 = 0.08, 0.16, 0.4 or 0.8 x stake
invaders-megaways-slot-alien-symbolAlien 3, 4, 5 or 6 = 0.12, 0.24, 0.6 or 1.2 x stake
invaders-megaways-slot-scientist-symbolScientist 3, 4, 5 or 6 = 0.16, 0.32, 0.8 or 2 x stake
invaders-megaways-slot-invaders-logo-symbolInvaders Logo 3, 4, 5 or 6 = 0.2, 0.6, 1.6 or 4 x stake
invaders-megaways-slot-bonus-symbolBonus 4+ triggers free spins feature
invaders-megaways-slot-wild-symbolWild Substitutes for all except bonus symbol

Invaders Megaways Mobile


The super slick sound and visuals work superbly on the Invaders Megaways mobile slot. Also available on desktop and tablet devices, the wacky theme and colourful graphics are best suited to bigger screens to get the full experience.

Invaders Megaways Bonus Features

Many Megaways slots come with the same combination of extras. Things are a little different in Invaders Megaways. You’ll find the classic Megaways mechanic here as well as some innovative extras that you don’t usually find in a Megaways release.

Cascading Reels feature

When a winning combination is formed, the Cascading Reels feature kicks in. The successful symbols are blasted off the reels and new ones drop in and replace them. A new payout calculation follows. If a new winner is created, another cascade follows. These continue as long as there’s a new winner on show.

UFO Wild Selector feature

Above the reels, you’ll see a row made up of all the symbols. A UFO buzzes along this row and will zap 1 of them every spin. Known as the UFO Wild Selector feature, all examples of this zapped symbol that appear on reels 2, 3, 4 or 5 will turn wild for that spin and any subsequent cascades that follow.

Mythical Unicow feature


The Unicow can fly onto the reels at random on any base game spin and increase the number of symbols on all 6 reels. Called the Mythical Unicow feature, this also boosts the number of Megaways which can be anywhere from 168,070 up to 1 million Megaways.

Free Spins feature


Land 4, 5 or 6 planet scatter symbols anywhere on the reels on the same spin activates the Free Spins feature. The more scatters, the more initial free spins:

Scatters Free Spins
4 scatters 7 free spins
5 scatters 122 free spins
6 scatters 15 free spins

On each free spin, 1 of the 5 higher value symbols is randomly chosen and will become wild for that free spin. This wild also comes with a special modifier attached. Which modifier is active depends on which symbol is selected. Here’s what to expect:

  • Invaders Logo: if this symbol is the wild, it expands to fill the whole of the reel when it hits. This is counted as multiple win ways in a winning combination.
  • Scientist: here, a multiplier is doubled with each successive cascade. The multiplier starts at 2x but can reach a maximum of 256x.
  • Alien: the Alien increases the number of symbols on the reel it lands on and an adjacent reel. This also increases the number of potential ways to win (up to 1 million).
  • Cow: all cows count as 2 wild symbols.
  • Ray Gun: for each Ray Gun that lands, 1 extra wild is added to the reels. This only counts for the main free spin, not any cascades that follow.

Finally, retriggers are possible here too. Land 3 scatters for 4 more free spins and 4 or more scatters for a full retrigger. You can benefit from unlimited free spins.

Invaders Megaways Review Summary – unique UFO cracker

Theme & Symbols

Sounds & Music

Bonus Features

RTP (96.3%)

Max Win (75,798x)


WMS has taken the classic alien theme and the familiar Megaways mechanic and shaken it up a bit to create the Invaders Megaways slot. It’s not your typical Megaways game with the usual bonus features.

The Cascading Reels is pretty standard but all the other little extras offer something fresh though, starting with the ray gun wilds and the Unicow expansions. I particularly like the Mythical Unicow feature where adds more symbols to the reels for up to 1 million Megaways.

The biggest wins will come from the free spins due to the 5 modifiers. The Alien can give you up to 1 million Megaways but it’s the scientist you should look out for as the multiplier can reach a whopping 256x.

This will give you the best chance of landing the 75,798 x stake max wins. Combine the innovative gameplay with the slick sound and visuals and you have a very unique game in Invaders Megaways.

Scientific Games, which owns WMS, has produced a number of Megaways games. Spartacus Megaways (WMS) also offers up to 1 million ways to win. Beetlejuice Megaways (Barcrest) is based on the 1988 horror comedy film and offers more traditional ‘Megaways’ features.

I recommend Perfect Potions Megaways (NextGen Gaming) which comes with up to 700,000 ways to win and potential 72,000 x stake wins.

  • 1 million ways to win
  • Innovative game features
  • Great design
  • Small wins with low value symbols

Invaders Megaways FAQs

What is the Invaders Megaways RTP?

The Invaders Megaways RTP rate is 96.3% which is just above the average. High variance, the bigger wins will come in the free spins due to the various modifiers on offer.

What is the Invaders Megaways max win?

The maximum win in Invaders Megaways is 75,798 x your total stake per spin. Your best chances of winning big is by increasing the number of ways to win to 1 million or from the multipliers in the free spins.

How does the Mythical Unicow feature work?

The Unicow randomly flies onto a base game spin to trigger the Mythical Unicow feature. The number of symbols on all reels increase giving you from 168,070 to 1 million Megaways.

Are there any Invaders Megaways free spins?

Yes, the Free Spins feature can give you unlimited free spins. On each free spin, a high value symbol becomes wild. These wilds come with modifiers including expanding wilds, multipliers up to 256x, more ways to win, double wilds and extra wilds.

Is there an Invaders Megaways demo?

Yes, the Invaders Magaways free play version can be found here at Produced using HTML5 technology, you can enjoy it on all devices.