Best Sci-Fi Slots 2026

Our pick of the best sci-fi slots from every major studio, with free demos and full stats.

We currently list 39 sci-fi slots from 7 studios, led by BGaming (11), Nolimit City (9) and Thunderkick (6). Across the 33 games with a published RTP, the average is 96.17%. UFO Pyramids has the highest at 97.17%, while Alice: Time Rift is lowest at 94.10%. Max wins range from 582x up to 100,000x on Money Train 3. Of the 30 games with a provider volatility rating, the most common ratings are very high (37%), high (33%) and medium (13%). 19 of them (49%) offer a bonus buy where it is legal.

39 slots match this list. Rankings use our editorial review score and the published game data; they are not paid placements.

1. Money Train 3 – Relax Gaming

Money Train 3 moves the series into a steampunk setting and doubles the cap to 100,000x. The bonus adds new persistent symbols on top of the classics. It's more complex than Money Train 2, which makes the demo especially useful before playing for real.

96.10% RTP · Very high volatility · 100,000x max win

2. Reactoonz – Play'n GO

Reactoonz has no traditional free spins – its features trigger from a charge meter that fills with every winning cluster. That design keeps the base game busy, and the Gargantoon feature is still one of the most enjoyable moments in any cluster slot. It remains one of Play'n GO's best games years after release.

96.51% RTP · High volatility · 4,570x max win

3. Brute Force: Alien Onslaught – Nolimit City

Brute Force: Alien Onslaught is a 6x5 sci-fi sequel with four kinds of stacked xNudge Wilds. Most of them show a random multiplier at the bottom when they nudge into view, and ordinary wilds upgrade every low symbol on their reel to a mid-tier symbol.

96.01% RTP · Very high volatility · 80,000x max win

4. Infectious 5 xWays® – Nolimit City

Infectious 5 xWays is a 5x4 slot built entirely around Infectious xWays. Mystery symbols reveal a stack of one symbol and spread it to other positions, while ordinary wilds can fill out the extra ways.

96.02% RTP · Very high volatility · 55,555x max win

5. Brute Force – Nolimit City

Brute Force is a 5x5 action slot with three types of stacked xNudge Wilds that always nudge to full view and show a random multiplier. The xNudge Meter adds up every multiplier value on winning symbols, so you can see what a spin is worth as it builds.

96.08% RTP · Very high volatility · 40,000x max win