Overview: Get ready to take on the alien invaders in our awesome 5 reels, 12 payline slot game. This slot game 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 install - play right in your browser or on your mobile device. You can log in at any time 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!
This classic style, pick an 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.
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.
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 are 13000 credits to be won by collecting the aliens, so catch them all to rocket up the leaderboard!
Wild Symbol: Substitutes for any other symbol except scatter.
Scatter Symbol: Hit 4 or more anywhere on the 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.
Get ready to make Alien contact! With this exciting and diverse selection of science fiction, free Alien slots from some of the world's best slots developers!
Overview: Arrival slot game is a 5 reel, 15 payline Aliens slot from the masters of 3D games Betsoft. This is a brilliant and funny sci-fi game. Obviously, taking inspiration from the Tim Burton film Mars Attacks. This game looks amazing, packed with the neat graphical flourishes we expect from a Betsoft. At the bottom of the screen is an alien with a huge brain. He messes around as you spin the reels. On the reels, you will find an array of sci-fi/Alien slots icons. These include a heroic astronaut, alien critters, ray guns, robots, planets, space stations, and a damsel in distress.
Land 3 or more alien symbols on the reels activate the Abduction Bonus feature. During this feature, a UFO arrives and hovers above a reel. Turning that entire reel wild and awarding free spins. Landing 3 of the ray guns symbols triggers a typical Betsoft Click Me bonus round. In the click me bonus round, you must select various UFOs to win cash prizes until the 'collect' icon appears. Landing 3 or more of the woman symbols will trigger the third bonus feature called 'Save the Girl Bonus.'. In this feature, our heroic astronaut use switches to release the girl from the holding rays and win an instant cash prize.
If you're a fan of Betsoft's 3D slots games, give this free Alien slots game a spin. It's not one of their newest games. However, it's certainly as amazing visually as any of Betsoft's latest titles. Making it well worth checking out!
Overview: This free Alien slots game is an officially licensed game that was released by Net Entertainment back in 2014. Based on the 20th Century Fox Aliens movie. Which is the second (and some argue the best) of the Alien films so far. This is a fantastic-looking 5 reel, 15 payline slot game that takes inspiration from the movie. Really capturing the vibe of the movie, complete with terrifying Xenomorph aliens, face-huggers, and a stress-inducing radar! You could say it's the ultimate when it comes to Alien slots.
Your challenge is to keep your cool. Grab your pulse rifle, press the spin button, and head deep into infected Alien territory. Through a multi-level quest to destroy the Alien Queen to win the jackpot. Are you brave enough to try?
In terms of features, you get 3 distinct and different levels of play. Level 1: The Search sees players trying to fill the Alien Activity Meter with 9 multipliers. Scan the infested premises for Alien activity and fill your 9 bar Alien Activity Meter. Every unsuccessful spin will slowly empty the bar. Complete 9 steps to move on. Level 2: The Encounter, which gives you a symbol overlay that guarantees a win from the very first spin!
In this round, you get a pulse rifle, an Ammo Clip reel containing Ammo symbols, an Ammo Clip Counter, and an Alien Activity Meter. You have 10 steps that you must complete to reach level 3. The multipliers you won in Level 1 will be transferred to this level with up to 6x multiplier on 3 symbols per spin for big wins. The Ammo Clip Reel contains Ammo symbols. If they appear on the center position of the reel, it will increase the Ammo Clip Counter activating the game's free spins feature.
If you can make it through Level 2. Level 3: The Hive awaits, with a reward of 5 spins and the chance to destroy the Queen Hive. Doing so with a single grenade gives the maximum win. The Hive Health Meter is full at the start of the Hive level. Your grenades get thrown at the Alien Queen to inflict damage. A multiplier on the center position of the multiplier reel can multiply the damage up to 10x.
Thanks to the exciting multi-level theme and engaging gameplay, this is one of those slots that is even fun to play in free play mode. If you're a fan of the Alien movies and/or the video games, then you must give it a spin!
Overview: Developed by Playtech. This is one of the oldest alien slots games on this page. Compared to Playtech's famous superhero-themed slots games, it does look somewhat dated. Although, it's still quite an attractive sci-fi-themed game. In contrast to the frightening Aliens visuals, as mentioned above. Alien Hunter delivers a much more cute and fun feel. Despite its somewhat dated and cutesy visuals, it does have a lot to offer. With wild, scatter, free spins, a side bet feature, and even a progressive jackpot!
The Alien symbol is the wild symbol and will substitute for other symbols to complete a winning combination. Apart from The Hunter Ship scatter symbol.
Land 5 of The Hunter Ship symbols to trigger 25 free spins, 4 to trigger 10 free spins, and 3 to trigger 5 free spins. 3 of the Alien Hunter bonus symbols will give you access to the bonus round. In which it starts by giving you two options to choose from: Skill or Luck. In Skill mode, you must catch 6 aliens within 15 seconds. Your win depends on which aliens you catch - some are quicker than others, and as such worth more. Red aliens are worth more. Followed by the blue aliens and then the green aliens.
There is also a consolation prize if you don’t manage to catch any aliens. In Luck mode, the aliens move more slowly, and there is no time limit you may shoot at will. The game will end once you have caught 6 aliens. Note, however, that your bonus amount will be determined randomly and regardless of your shooting skills (or lack of them!)
Collecting the alien eggs on reels 1 and 5 will trigger the Alien Hunter Collecting Bonus Game. This is a pick item style game in which you must click on alien eggs to reveal prizes. Multiplied by your bet, one egg is called the Super Egg and contains a multiplier that doubles the win of the eggs you click on after finding it. Watch out as one of the eggs contains an evil alien. Clicking on this egg will end the bonus feature and return you to the reels.
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?
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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.
Unique 12 payline slots with various bonus games.