The Expanse: Osiris Reborn Gameplay Shows Ganymede Infiltration Mission Going Sideways

Owlcat Games released a new gameplay video for The Expanse: Osiris Reborn, featuring a mid-game mission on the moon Ganymede where players must infiltrate a secret base to recover stolen data. The footage shows the mission quickly spiraling from a covert operation into a fight for survival when unexpected complications emerge.

What the Gameplay Reveals

The Ganymede mission centers on the player character and their sibling J attempting to break into a Protogen base to retrieve data stolen from Pinkwater station. The trailer demonstrates how the infiltration begins methodically—players explore the facility undercover, interact with Protogen employees, and attempt to talk their way into the storage area where the stolen data is held.

The situation deteriorates when a third party unexpectedly arrives and a bioengineered threat is unleashed inside the base. This forces the siblings to abandon stealth and fight their way out. The video showcases the game’s cinematic storytelling alongside its action combat mechanics, exploration systems, and dialogue options.

The tactical layer becomes central here: the player’s captain directs two companions in active combat while others provide remote support by disabling systems or redirecting enemy attention. The footage highlights real-time command mechanics and cover-focused gunplay as the crew adapts to rapidly changing threats.

Why This Matters for Expanse Fans and Action RPG Players

The Expanse: Osiris Reborn is built as a narrative-driven action RPG that expands the lore of both the TV series and novels. The game places you in the role of a Pinkwater Security mercenary—not a hero, just someone trying to survive a conspiracy spiraling across the solar system.

Ganymede and other locations like Ceres, Mars, and Luna serve as destinations where the political fragmentation and decay of human space becomes tangible. Each location has its own character and state of deterioration, ranging from falling-apart habitats to strongholds hiding deeper problems. The developer has emphasized that your choices throughout the campaign shape your story and influence crew loyalty over time.

The crew-focused design treats companions as people with their own histories and motivations rather than simple mission assets. Your leadership decisions determine whether relationships strengthen or fracture under pressure. This approach mirrors modern story-driven action RPGs where crew dynamics matter as much as combat effectiveness.

The gameplay also demonstrates how Owlcat Games structures encounters with multiple approaches—stealth, dialogue, and improvised combat all appear as viable paths through the same mission space. When plans fail, adaptation becomes the survival tool.

What’s Next

The Expanse: Osiris Reborn is scheduled for Spring 2027 on PC, PlayStation 5, and Xbox Series X. As the release window approaches, watch for deeper dives into crew mechanics, character customization options, and how player choices branch across the broader campaign narrative.