Sci-Fi Slots | Best Sci-Fi Slots Games Online

Each game below has a verified RTP figure and a Gambling.com User Rating based on real player experience from our community of verified slots testers.

• RTP: 95.11%
• Volatility: Medium
• Max Win: €500,000
• Developer: Playtech slots
• Gambling.com User Rating: 7.7/10

The sophisticated stage-shifting mechanic makes this an ideal choice for fans of cinematic world-building.

By tying gameplay progression to iconic movie locations, the slot delivers an immersive experience for Irish players. It perfectly captures the dark atmosphere of the film while offering dynamic features that keep the action engaging.

• RTP: 96.10%
• Volatility: Medium
• Max Win: €30,000
• Developer: Betsoft slots
• Gambling.com User Rating: 8.1/10

Arrival delivers a cinematic sci-fi experience through impressive 3D character animations.

This space adventure stands out with its immersive narrative and the interactive UFO Click Me feature, offering Irish players a nostalgic yet engaging slot journey that remains visually striking in the modern market.

• RTP: 96.20%
• Volatility: Medium
• Max Win: €36,000
• Developer: Thunderkick slots
• Gambling.com User Rating: 8.2/10

Thunderkick delivers a sleek experience with Flux, focusing on clean geometric shapes and vibrant colors.

The game stands out with its flexible bonus round, where players choose between extra paylines, win-both-ways mechanics, or both. It is a refreshing, minimalist choice for fans of cosmic slot themes.

• RTP: 95.71%
• Volatility: High
• Max Win: €120,000
• Developer: Red Tiger Gaming slots
• Gambling.com User Rating: 8.0/10

Red Tiger delivers a gritty, comic book aesthetic in this post-apocalyptic slot.

Landing the 1x3 Cash Queen Wild on the middle reel triggers a Respin feature, offering players the chance to lock winning symbols for bigger payouts in a wasteland setting.

• RTP: 96.30%
• Volatility: Medium
• Max Win: €100,000
• Developer: Net Ent slots
• Gambling.com User Rating: 8.3/10

NetEnt brings the classic Universal horror film to life using a unique walking wild mechanic.

When the Police and Griffin symbols collide on the reels, they trigger a lucrative free spins round. This atmospheric slot offers high-quality graphics and immersive gameplay for Irish players seeking big wins.

• RTP: 96.60%
• Volatility: Medium
• Max Win: €750,000
• Developer: Games Global slots
• Gambling.com User Rating: 8.8/10

This immersive sci-fi slot captures the intensity of the hit television series for Irish players.

The tiered ranking system rewards loyalty by unlocking exclusive content as you climb the military ranks. Cinematic visuals and the Ion Storm feature ensure that every spin feels like a mission in deep space.

• RTP: 96.61%
• Volatility: Medium
• Max Win: €56,250
• Developer: Next Gen slots
• Gambling.com User Rating: 8.6/10

Irish players can explore a striking fusion of neon sci-fi visuals and primal animal themes in this high-concept slot.

The medium volatility profile balances the action while the Flare Up mechanic provides a distinct gameplay element. This title offers a visually stunning experience for those seeking modern design.

• RTP: 96.08%
• Volatility: High
• Max Win: €4,666,620
• Developer: NoLimit City slots
• Gambling.com User Rating: 8.4/10

This hauntingly atmospheric slot invites Irish players into a grim medical facility filled with unsettling imagery.

The complex grid utilizes Fire Frames to slice symbols into two, adding a layer of depth to every spin. It is a standout choice for those who enjoy dark themes and highly innovative mechanics.

• RTP: 96.16%
• Volatility: Medium
• Max Win: €30,000
• Developer: Inspired slots
• Gambling.com User Rating: 8.2/10

Irish players can enjoy a trip down memory lane with this arcade-inspired masterpiece.

Pixelated 8-bit aliens march across the grid as the Cannon slides along the bottom to fire at UFOs. This retro slot perfectly captures the 1978 classic while offering modern features for a truly nostalgic gaming experience.

• RTP: 96.00%
• Volatility: High
• Max Win: €200,000
• Developer: Games Global slots
• Gambling.com User Rating: 8.1/10

Jewel the master thief leads a daring Parisian heist in this sophisticated slot.

Players in Ireland can experience the tension of the Vault Bonus, which features a prominent 3x3 Mega Symbol on the reels. This stylish title combines a sleek aesthetic with engaging mechanics for a premium gaming session.

• Space Opera Slots: Browse our selection for top-rated games in this sub-category.
• Robot & AI Slots: Browse our selection for top-rated games in this sub-category.
• Time Travel Slots: Browse our selection for top-rated games in this sub-category.
• Alien Contact Slots: Browse our selection for top-rated games in this sub-category.

High-volatility slots produce less frequent wins with greater variance between sessions. Players should set a clear budget before playing any high-volatility title.

RTP is the percentage of total staked money a slot returns to players over a large number of spins. Read more in our guide on what is RTP. All figures are sourced from published game paytables.

Maximum win figures are taken from published game rules and represent the theoretical ceiling at maximum bet, shown in EUR. Figures are for reference only and do not reflect expected session outcomes.

Gambling.com User Ratings are based on verified feedback from our community of online slots players and testers. Each score reflects real player experience including bonus feature consistency, payout fairness and overall value. No rating is generated algorithmically or sponsored by developers or operators.

• Space Slots
• Alien Slots
• Superhero Slots

Battlestar Galactica leads the Gambling.com User Ratings in our Irish sci-fi slots selection with a score of 8.8/10. Flame delivers the highest RTP at 96.61% for players focused on return rate. All titles are available to play free via our Irish slots sites before committing real money.