Fans of extraterrestrial encounters, heart-pounding action, and cosmic mystery will be glad to know their favorite characters are now just a click away. The world of alien-themed slot games has exploded in recent years, combining the thrill of sci-fi storytelling with the excitement of high-stakes gaming. From classic horror-inspired titles to over-the-top cosmic comedy, there’s a slot for every kind of alien hunter out there.
And here’s the best part—for movie and online game lovers, it is possible to try out the games discussed later in the article for free by taking advantage of online promotions—like no wagering bonus spins—to find out which game best suits your style.So grab your plasma blaster (or just your smartphone), and get ready to explore these five unforgettable alien-themed slot games that are out of this world.
- Aliens (NetEnt)
Based on the legendary Aliens movie franchise, this slot is a nerve-wracking, action-packed ride through deep space. Designed by NetEnt in collaboration with 20th Century Fox, the Aliens slot game doesn’t just reference the film—it throws you right into it. You’ll recognize the chilling sound effects and the pulse rifle-ready atmosphere instantly. With three terrifying levels—The Search, The Encounter, and The Hive—each spin feels like a step closer to either glorious survival or deadly ambush. The game features 3D animations, cinematic cutscenes, and bonus rounds reminiscent of the Alien: Earth TV show and official films.
- Alien Hunter (Playtech)
In Alien Hunter, the tone shifts from horror to high-tech sci-fi adventure. This Playtech title puts players in the boots of an elite space ranger, hunting bizarre alien lifeforms across the galaxy.
Colorful graphics, plasma-themed symbols, and electrifying bonus rounds keep the pace moving fast. It’s sleek, it’s flashy, and it’s just the right amount of tongue-in-cheek. Perfect for players who love the idea of alien combat without all the doom and gloom.
- Space Wars (NetEnt)
Don’t let the name fool you—Space Wars is less about intergalactic conquest and more about quirky alien species duking it out in the cutest battle ever seen. Created by NetEnt, this slot has a fast-paced, arcade-like energy that sets it apart. The reels are filled with brightly colored alien warriors, each animated with weird little personalities. The big draw? A unique "Cloning Pod Re-Spin" feature that replicates your winning symbol across the screen for more payout potential. It’s a fun, lighthearted take on the alien genre, perfect for casual players or anyone who just wants a cosmic laugh.
- Invaders from the Planet Moolah (WMS)
This hilarious and inventive slot from WMS features UFOs, retro alien invaders, and cows—yes, cows. The theme is pure camp—but the mechanics are no joke. It uses a cascading reels system, so every win causes the symbols to fall away, allowing new ones to drop and create more wins in a single spin. The longer your streak, the better your rewards. Combine that with an epic bonus feature where cows are beamed up by spaceships, and you've got a game that’s just as ridiculous as it is rewarding.
- Reel Aliens (IGT)
For those who appreciate vintage slot machines with a modern twist, Reel Aliens delivers. It’s got that classic IGT feel—straightforward gameplay, colorful symbols, and high replay value—with an interstellar upgrade. The game features a wild cast of extraterrestrial characters, bright comic-book-style art, and an upbeat, sci-fi soundtrack. It’s simple, fast, and just the right mix of nostalgia and novelty.
