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Overview: Get ready to take on the alien invaders in our awesome 5 reel, 12 payline slot game. This slot games sees you taking on Mim Martianian, the Borgelz, Thargs and the Klingonz in a battle to save the earth!
This fast paced slot game features Wild and Scatter symbols, free spins, a pick item style game and an alien shooting game that will test your reflexes as you attempt to blast the aliens out of the sky!
Instant Play & Always Free! As with all our games, no sign up is required to play our Alien Invaders slot machine and there's no software to intall - play right in your browser or on your mobile device. You can login at anytime and save your scores on the leaderboard for the chance to win a real cash prize! See the free prizes page for more details of how you can win real money playing our free slots games!

Alien Invaders Pick Item Bonus Game

This classic style pick item bonus game gives you 4 different ray guns to choose from. When you have picked one of the guns your bonus score will be revealed.

Alien Attack Bonus Game

Triggered by hitting four or more of the UFO symbols on a winning payline. This bonus game is triggered when you land 4 or more of the Thargs on a winning payline game. In this game you must tap (or click on) the aliens in their spaceship before they fire at you and reduce your energy bar.

Alien Capture Loyalty Feature:

Land 4 or more scatters on the reels to collect one of three loyalty bonus symbol icons. If you manage to collect three of the rocket ship loyalty feature icons you will capture one of the invaders and get a bonus for your hard work!
There's 13000 credits to be won by collecting the aliens so catch them all to rocket up the leaderboard!

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Alien Invaders Slot Machine Paytables

Alien Invaders Game Symbols Guide

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Wild Symbol: Substitutes for any other symbol except scatter.

Scatter Symbol: Hit 4 or more anywhere on te reels to win a loyalty rocket ship icon.

Bonus Symbol 1: Hit 4 or more on a winning payline to trigger the Alien Attack bonus game

Bonus Symbol 2: Hit 4 or more on a winning payline to trigger the Pick Item bonus game.

Free Spins Symbol: Hit 4 or more on a winning payline to win 6 free spins.

Aliens Fun Fact: The world's first site specifically designed for UFO landings has been built in Canada in the town of St Paul, Alberta.
What do Aliens eat their food off?
Flying saucers!

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We don't have any other sci-fi themed games at the moment however we do have slots games featuring monsters so check out our exclusive Halloween Slot and Halloween Party Slot. For another 12 payline game check out our brilliant Viking Gods slot.