Rebellion Confirms Alien Deathstorm for Spring 2027 on Xbox, With Day-One Game Pass and a New Gamescom Trailer

Rebellion has used gamescom 2026 to drop a new trailer for Alien Deathstorm, its science-fiction action-horror FPS, and has set a Spring 2027 release window for Xbox Series X|S, Xbox on PC, and Xbox Game Pass, where it will be available on day one.

The trailer, which debuted during the show and is broken down in a new Xbox Wire feature by Rebellion's Head of Design Ben Fisher, focuses on the mid-game Reactor mission. You play an Engineer who has been sent to an off-world colony that lost contact with Earth, and the rescue mission has gone badly wrong: an apocalyptic mega-storm is tearing the planet apart, while the colony is overrun by intelligent aliens that stalk, adapt, and hunt in packs.

Rebellion has used the showcase to outline five takeaways for the game. The mega-storm is an ever-present environmental hazard, and the Reactor mission asks you to repair several faults across the underground substation and the flare stack, each riddled with ambushes and exposed terrain. Mission objectives are presented through your in-game digital assistant Squire, with the player free to diagnose the situation and choose their own pace — until the alien threat starts actively hunting you.

At Gamescom the studio revealed four alien types: Soldiers, Scuttlers, Blister Scuttlers, and Scuttler Swarms, each with distinct behaviours. Combat is described as brutal and intense, with you playing an Engineer who has had only basic combat training, not a super-soldier. Weapons shown in the trailer include the pistol, SMG and shotgun, with more to be revealed later, and Rebellion is leaning on its Sniper Elite and Zombie Army pedigree for the gunplay. Blueprints for optics, stocks, barrels, and magazines can be found and 3D-printed in the field, and the Engineer's hammer doubles as both a repair tool and a melee weapon, which Rebellion recommends for close encounters with flying Scuttlers. Survival tools include a Geiger Scanner for nearby threats, grenades, flares, and health injectors.

Alien Deathstorm was first announced in March during the Xbox Partner Preview and is now confirmed for Spring 2027 on Xbox Series X|S, Xbox on PC, and Xbox Game Pass from launch. The game is already available to wishlist on the Xbox store and Steam.

For the official breakdown of the new trailer, including gameplay context from Rebellion's Head of Design Ben Fisher, see the Xbox Wire feature. The new trailer itself, plus the announcement post on Rebellion's site, is also live.