Alien Slots

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Where and how to play free alien slot machines?

Alien slotsThere’s nothing more enthralling than an adventure involving fighting aliens. So get your weapons ready to play for free. You can enjoy an Alien slot game with no download and no registration required. At Casino Robots you will find great variety of free slot games on every theme you can imagine.

Alien slot machines - overview, history

Space-themed games have always been a hit. It’s unclear when the first Alien casino game hit the market, but the fascination with extraterrestrials goes way back.

If you’re not familiar with alien online casino games, you can play a demo game to see what the hype is about. 

Slots with aliens– which symbols are typical?

The selection of alien themed games is a vast as space itself. While some games lean toward the scary alien symbols with hatching eggs, others are cute with little spaceships.

Popular slots with aliens

There are numerous alien slots, so we’ve gathered three that we consider among the best:

Alien slots by netent

Get ready to fight the scariest aliens ever. The aim is to destroy the terrifying alien queen. You have five reels, 15 pay-lines, and three stages.

Arrival by betsoft

Join Brian the alien on an intergalactic adventure to save a beautiful scientist from the aliens across five reels and 30 pay-lines.

Alien robots by netent

Step away from the scary aliens and meet the cute extraterrestrial robots. The game offers five reels and 30 pay-lines with 243 bet ways.

Bonus rounds and payouts of alien themed online games

It’s challenging to specify bonus rounds or payouts since they vary from game to game. However, you can check out any slot machine we recommended to find excellent features. The most common are free spins, sticky wilds, and bonus games.

Return to players RTP and strategies when playing casino slots

Most alien themed slot games have an average RTP of 95%. Some are above average, like Alien robots by NetEnt with an RTP of 96.3%. 

Since slot games are randomized, there’s no guaranteed strategy. If you play online free, you can practice with no deposit to become a master alien-fighter.

Software providers that provide alien online casino games

Many reputable software providers create alien-themed slots. Some of these providers are:

  • NetEnt
  • Play‘n Go
  • Betsoft
  • Microgaming
  • Playtech

Are there any alien slots available for mobile devices

Most software providers develop slots that are compatible with mobile play. You’ll find apps available in the Google PlayStore or App Store for your device. You’ll also find these games optimized for your mobile browser.


Intergalactic adventures are at your fingertips with alien slots. If you enjoy the thrill but would like to try something earth-bound, consider Pirate slot machines or horse racing slots. Overall, we had a ball playing alien slots and hope you give them a try.


Can you play alien-themed slots on mobile devices?
Yes. Most alien slots are compatible with mobile devices.
Are there free alien slots?
Yes. You can play demo versions for free.
Is the RTP good?
The RTP’s differ, but some have above average and some below.
What's a good strategy for alien-themed slots?
What's a good strategy for alien-themed slots?

Overall rating of 777 slots by Casino Robots

Casino Games: Alien Slots; Requires: Browser with HTML5 support and web device with OS like: Windows, Android, iOS, Linux, etc.; Type: Game; Price: Free (0); Rating: 9.65 out of 10