Among the best slots one can enjoy, alien slots are popular casino games played by sci-fi fans. They take players on outer space adventures, where they can encounter aliens, spaceships, and UFOs. However, while being fascinated, the gameplay goal should not be forgotten: collecting cosmic treasures.
If you are often curious about space travel and alien encounters, today’s casino news highlights the 10 best alien slots that are engaging and rewarding to play.
Best Alien Slots: Cosmic Reels, UFO Wins & Intergalactic Fun
Try our best online slot machines. Every alien slot game has its interpretation of what intergalactic missions and alien encounters should be. The adventures, bonuses, and a chance to win cash prizes create a captivating online gaming experience.
Also, try our picks for best space-themed slots.
| Slot Game | Provider | RTP | Play |
|---|---|---|---|
| Alien Fruits Bonus Buy | BGaming | 96% | Play Here |
| Space Cat | KA Gaming | 96% | Play Here |
| Space Jail | Thunderspin | 95.5% | Play Here |
| Oof the Goldmine Planet | BGaming | 97% | Play Here |
| Space Storm | KA Gaming | 96% | Play Here |
| Galaxy Guardian | Spadegaming | 96.7% | Play Here |
| Back to Venus | BetSoft | 97.07% | Play Here |
| Event Horizon | BetSoft | 96.51% | Play Here |
| It Came From Venus Plus | BetSoft | 95.80% | Play Here |
| UFO | KA Gaming | 96% | Play Here |
Alien Fruits Bonus Buy by BGaming
BGaming kicks off our best alien slots list with a classic: Alien Fruits. It has a 6×5 reel set with a refilling mechanism that allows aliens and cosmic symbols to collide, bringing big wins. The game’s RTP is 96%.
Features:
- Pay anywhere
- Spaceship Scatter: Up to 30 free spins with multipliers (x2 to x100)
- Bonus Buy
- Maximum win prize: x15,000
Space Cat by KA Gaming
It’s time for a space battle! Space Cat is a shooting-style alien slot machine with no reels or paylines, but its RTP is 96%. Level up your slot game with tips from our expert guide. Shoot down alien enemies and win rewards.
Features:
- Boss Battle
- Up to 50x random multipliers when you increase fire speed
- EMP Bomb: pause enemies
- Chain reaction: multiple kills
Space Jail by ThunderSpin
Head to the world beyond the skies to see what a futuristic prison looks like. Keep the criminals in check and win big. Space Jail has a standard 5×3 reel with 10 paylines, high volatility, and 95.5% RTP.
Remember to check out the best alien slots at Slotsparadise.com!
Features:
- Laser Gun Wild
- Stacked Rocket Scatter: triggers up to 20 free spins
- Bonus game
- Maximum win prize: x1,000
OOF the Goldmine Planet by BGaming
Launch into space to find OOF, a Goldmine Planet. This alien casino slot game has five reels with 10 paylines, with 3D gold bars as winning symbols.
Features:
- Instant win Wilds
- Up to 10 free spins
- Buy Bonus
- Sticky wilds
- Maximum win prize: x5,000
Space Storm by KA Gaming
Space Storm is among the best alien slots for players with a sweet tooth. It has a 5×4 reel with 10 paylines, filled with colorful candies. RTP is 96.5% matched with high volatility.
Features:
- Pay all ways
- Expanding wild
- Up to 10 free spins
- Respins
Galaxy Guardian by Spadegaming
Enjoy an interplanetary adventure with Galaxy Guardian, a 6-reel alien slot with up to 117,649 ways to win. It has a medium volatility and an RTP of 96.7%.
Features:
- The Galaxy Guardian Wild
- Spaceship Scatter: can unlock up to 8 free spins
- Bonuses: Gold Crystals jackpot with Level-Up option
- Maximum win prize: $25,000
Back to Venus by BetSoft
Ready for liftoff? It’s time to go back to Venus! The alien slot features a space farm with five reels and 20 paylines. The RTP is high (97.07%), combined with medium volatility.
Features:
- Asteroid Wild
- Rocketship 10 free spins with sticky wilds
Event Horizon by BetSoft
An Event Horizon is a space wonder that allows nothing to pass through it, including light rays.
But beyond the horizons are treasures. The game ranks among the best alien slots due to its cosmic theme and unique sync reel feature. It has a 5×3 reel with 243 paylines filled with classic slot symbols. RTP is 96.51%, and variance is high.
Features:
- Neon Ball Wild
- Duplicating reels
It Came From Venus Plus by BetSoft
An alien plant landed on a farmer’s (Skeeter) land. Some people have learnt that it Came From Venus and are out to capture it. You have to be on guard! The 5-reel, alien-farm slot has 30 paylines with 95.8% RTP and medium volatility.
Features:
- Venus Flytrap Wild
- Helicopter Scatter: triggers the “Save the Plant” bonus round (up to 11 free spins with multipliers reaching x10).
- Jackpot
UFO by KA Gaming
UFO slots are often treasure-filled. UFOs (unidentified flying objects) are flying all over. It is said that they came with gold. Start strong with smart casino strategies that work and find out if it is true. This 5-reel, 50-payline Alien slot has a 96% RTP and medium volatility.
Features:
- UFO Sticky Wild
- Alien Planet Scatter: up to 10 free spins with an additional 5 respins.
- Maximum win prize: x200
Space Out!
If you’re ready to explore the unknown, the best alien slots are your ticket to outer space.
Enjoy an intergalactic trip and bring home cosmic rewards.
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