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Free Alien Slots Machines

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!

Arrival Slot

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.

Arrival Slot Abduction Bonus Round

Land 3 or more alien symbols on the reels activates 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!

Where to play Arrival Slot? You can play Arrival slot game for free at Superior Casino. Canadian players can play Betsoft games at Lucky Creek Casino. (Not suitable for U.K. players).

Aliens Slot Machine

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 movie. Really capturing the vibe of the movie complete with terrifying Xenomorph aliens, face huggers and a stress inducing radar! You could say its 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 infested Alien territory. Through a multi-level quest to destroy the Alien Queen to win the jackpot. Are you brave enough to try?

Alien Slots Bonus Features

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 which 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 which 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 games 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 game play 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!

Where to play Aliens Slot? Play this free Aliens slot machine at ComeOn! Casino. U.K. players can play at Casino Gods. (Not suitable for U.S. players).

Alien Hunter Slot Machine

Overview: Developed by Playtech. This is one of the oldest alien slots games on this page. Compared to Playtech's famous super hero 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.

Alien Hunter Slot Free Spins

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.

Where to play Alien Hunter Slot? The Alien Hunter slot machine can be played for free at Paddy Power Casino. (Not suitable for U.K or USA players). UK players can play at Mr Green Casino.

Space Invaders Slot Machine

Overview: Aslo developed by Playtech. This is the official Space Invader slot game. Without a doubt Space Invaders is one of the most famous arcade games of all time. This classic coin-op was sold around the world by Japanese manufacturer Taito (created by Tomohiro Nishikado) way back in 1978. Quickly becaming a global pop culture phenomenon and remains an icon of gaming to this day. Playtech are the developers of this officially licensed game. Consequently they've really captured the essence of the arcade game. With the graphics appearing in a cleverly pixelated art style and controls that similarly look just like the buttons of an arcade cabinet.

This is a 5 reel, 10 payline which pays both ways. On the reels you'll find symbols depicting the classic Invaders. Another brilliant touch is the little cannon shooting up at the reels which turns symbols wild. Also watch out for the red UFO occasionally flying across the top of the reels. It doesn't always stop however if it does and the cannon stops under the UFO. It’s bonus time with re-spins and wilds galore.

Space Invaders has a good RTP of just over 96 percent. Bets start at just 10p. If you're a fan of retro video games then play this game in free play mode and see what you think.

Where to play Space Invaders Slot? The Alien Hunter slot machine can be played for free at Paddy Power Casino. (Not suitable for U.K or USA players). UK players can play at Mr Green Casino.
Like this game? You can also check our retro slots guide.

Outta this World Slot Machine

Overview: From developer Realtime Gaming we have another free alien slots, this one of their older games. : Outta This World is a 5 reel, 20 payline video slot. It has a nice cartoon science fiction theme. This game offers up a Random Progressive Jackpot expanding wild and also bonus game feature that can award free spins. On the reels the symbols have an extraterrestrial theme with a bright and colorful look. There's a one eyed green alien, spacecraft, telescope, ray gun, black hole, planet Earth and playing card symbols.

Outta This World Alien Slots Bonuses

During the main game the green Alien symbol can appear on reels 1, 3 and 5 only. He substitutes for all other symbols except scatters. Land the Black Hole scatters on reels 2 and 4 and furthermore you will trigger the Outta his World bonus feature. In this bonus round you must select from 10 planets to reveal prizes. 5 planets hide 5 free spins whilst the other five hide between 2 and 100 times the triggering bet. In addition to these prize two aliens are hidden and if you reveal both of these the bonus game will end and you will be returned to the reels. Once the bonus game has finished you will be taken straight into any free spins you have won during the game with all wins doubled during your free games.

Above all this game has a randomly won progressive jackpot which you can see building up above the reels. This jackpot can be won at the end of any spin regardless of combinations or wagering levels.

Where to play Outta this World Slot? Play for free at Slotastic Casino. (Not suitable for U.K. players).

It Came From the Moon Free Alien Slots Machine

Overview: Get ready to head back to the 50s in this comic retro themed slot based on Roswell, UFO mythology and classic Hollywood B movies. Developed by UK slots developer Realistic Games. It Came from the Moon is a fun and easy to play 5-reel slot with 20 paylines.

The slot features various UFO related objects and newspaper reports, sci-fi style spaceships, alien weapons and frightened humans! Symbols are depicted in a comic book style. You also get a set of the usual playing card A, K, Q, J and 10 symbols. A Wild symbol is represented by a cartoon word Wild inside a speech bubble and substitute for all other symbols on the reels (except the Bonus Scatter symbol).

Whenever you hit 3 or more of the 'Then suddenly… it began' speech bubble symbols across reels 2-4 you’ll be taken to a bonus round mini game. Where you’ll have to shoot up the spaceships to reveal your bonus prizes. Work your way up the level by finding a Moon Bug & if you’re lucky enough to reveal all the prizes in the bonus round before it ends your bonus prize is doubled.

Where to play It Came From the Moon Slot? Play for free at Mr Green Casino. (Not suitable for U.S. players).

Battlestar Galactica Slot

Overview: Battlestar Galactica is a five reel video slot powered by Microgaming. This is one of Microgaming's popular famous franchise slots with video footage from television and movies. Similar in style to Microgaming's Lord of the Rings and Batman slots (both of which are now discounted) and Game of Thrones and Terminator 2 slot games.

Themed around the hit TV series. Battlestar Galactica is the story of humans attacked by Cylons, a cybernetic race. The human beings home, called the Twelve Colonies, is destroyed. The Battlestar Galactica is the only ship left after the attack. Home to a small band of survivors who embark on a search for a legendary planet: Earth!

Battlestar Galactica Slot Bonus Round

This game serves up some awesome graphics and video footage also you get plenty of game play features too. There's Wild, Extra Wild, Scatter, 2 bonus games and free spins. A neat Achievement Ranking System, which unlocks more video content for the player as a result they move through the game. This game features 3 different modes of play. Normal Mode includes 15 free spins which subsequently award triple payout and Iron Storm which can turn up to five reels wild. In Run Mode all wins pay in both directions and the Jump Feature will turn 10-A symbols into mystery symbols. Finally, in Flight Mode ( activated randomly during Run mode) there are more free spins and symbols which randomly turn into wilds and split in two.

The Wild symbol is the Battlestar Galactica Logo which can substitute any other symbol except the scatter. It can stack (only on reel 1 during Normal game mode or the free spins feature). The Extra Wild feature appears in the Fight mode, up to five symbols can randomly transform into a wild symbol. During Free Spins games, the wild symbol can also turn into a Split Wild which will doubles up the win of any combination that it completes. The Scatter is the Battlestar Galactica spaceship. During Normal and Fight modes this symbol can trigger the Free Spins when you land three or more anywhere on the reels.

Battlestar Galactica Game Modes

When you are in Run mode. One of the FLT symbols appears on 3 it will activate the Jump bonus round. The playing card symbols are also removed from the reels and the FLT turns a random symbol which fills all the positions that the card symbols occupied.

During normal and fight game mode free spins can be triggered. In normal mode you get 15 free spins with all wins tripled during this feature. In the Fight mode you will get less free spins - 5 - to start with but you get a multiplier and you are also randomly awarded additional spins, added to the remaining number of free spins.

Overall this a must play for anyone into sci-fi or alien slots and also in particular it will appeal to fans of Battlestar Galactica too, obviously. (If you enjoy this type of video slot game you therefore also like to try Microgaming's Terminator 2 slot which similarly features in our Blockbuster Movie slots guide).

Where to play Battlestar Galactic Slot? You can play Battlestar Galactic free alien slots at Spinit Casino (Not suitable for U.S.A players).

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