Every Iconic Location Confirmed for The Expanse: Osiris Reborn So Far

Like any sci-fi film, TV series, or book, The Expanse has always been about its places just as much as the events that occur within them. The way people live, what they have access to, and who holds power all change depending on where someone is in the system. Earth, Mars, and the Belt aren’t just different locations. Rather, they operate by completely different rules, and that’s what drives most of the conflict. That’s also why The Expanse: Osiris Reborn will ultimately benefit from including the series’ most iconic locations, both in its storytelling and gameplay.

The Expanse: Osiris Reborn has already confirmed locations like Eros, Ceres, Ganymede, Mars, and Luna will all appear in the game, so players can expect a wide variety of biomes, characters, and narrative beats depending on where they’re at. Each location plays a different role in the system, whether it’s instability, control, survival, or political authority, and looking at them individually gives a clearer picture of the kind of world the game is stepping into.

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Eros: The Murder Capital of the Belt

Eros might actually be the singlemost iconic location confirmed to be featured in The Expanse: Osiris Reborn, and it says a lot about Owlcat’s intentions with honoring The Expanse‘s pre-established universe. Eros is one of the earliest examples of how dangerous the Belt can be when something goes wrong. It’s an asteroid station carved out for habitation, filled with civilians, workers, and transients just trying to get by. Widely known as the “Murder Capital of the Belt,” it might look like just another piece of infrastructure that keeps the system running, but it’s actually overcrowded, under-regulated, and vulnerable to exploitation from both corporate and political forces.

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That vulnerability is exactly what turns Eros into one of the most important locations in the series, and it’s likely to be just as important in Osiris Reborn. In the series, Eros becomes the center of the protomolecule outbreak, a catastrophe that wipes out nearly everyone on the station and sends shockwaves across the entire solar system. That’s ultimately when Eros stops being just another station in the Belt and becomes proof that the balance of power in The Expanse can shift in an instant, and with consequences beyond anyone’s control.

Ceres: The Actual Capital of the Belt

Ceres is another of The Expanse‘s most iconic locations as the capital, largest city, and most important spaceport for the Belt in The Expanse universe, so its inclusion in Osiris Reborn feels mandatory. As a massive, hollowed-out asteroid that’s been spun to simulate gravity, packed with millions of people living inside a network of tunnels and stations, Ceres functions as the Belt’s primary industrial and commercial hub, with constant ship traffic and a population that includes both long-term residents and people just passing through.

Life on Ceres isn’t easy, by any means, as it’s ultimately defined by harsh environmental, economic, and social constraints, where survival often depends on disciplined management of resources. Belters living there deal with rationed air and water, physical strain from low gravity, and systemic neglect from the inner planets. In reality, Ceres is where much of The Expanse‘s political tension is at its most visible, and it’s where the idea of Belter identity starts to take shape, between Belters and the inner planets. It will be interesting, to say the least, seeing how Ceres is presented in The Expanse: Osiris Reborn, and what kind of challenges players might face there.

Ganymede: The Breadbasket of the Belt

Ganymede is yet another iconic Expanse location confirmed for Osiris Reborn. Unlike many other locations in The Expanse universe, Ganymede stands out because it represents stability. It serves as the primary agricultural center—or “breadbasket”—for the outer planets, with massive domes that cover its surface so it can grow food that sustains large portions of the Belt. In a system where most environments are harsh and barely livable, Ganymede is one of the few places designed for long-term survival.

The catch, however, is that Ganymede sits at the intersection of Earth and Mars’ influence, with both powers maintaining a presence there. When conflict reaches it, the consequences are massive, with any disruption to the system’s food supply ultimately affecting countless lives beyond its own borders. In The Expanse: Osiris Reborn, that could all translate into missions focused on protecting and restoring critical infrastructure or resolving disputes, with the choices players make in those scenarios having a ripple effect in their own story.

Mars: The Home of the Dusters

Within The Expanse universe, Mars represents control, ambition, and long-term planning on a scale no other location really matches. As a young, technologically advanced, and highly disciplined military superpower that seceded from Earth to form the Martian Congressional Republic, it’s a fully colonized world with the clear purpose of terraforming under the Terraforming Project. Everything about Martian society is built around that goal, from its military structure to its culture, as a multi-generational effort to create a habitable atmosphere. Because of that, its inhabitants—otherwise known as “Dusters”—are notable for their work ethic, even if it leads to them joining the military.

In The Expanse, Mars’ identity as a highly disciplined, militarized culture effectively contrasts it with places like the Belt. Unlike the bureaucratic, chaotic Earth, Mars is portrayed as organized and focused, and unlike most of the Belt, it is largely self-sufficient. Needless to say, The Expanse: Osiris Reborn will likely see players encountering a world unlike that of any they’ve seen elsewhere, making for some interesting gameplay and character dynamics where conflicts may be less about politics and power dynamics and more about duty, expectation, and earning a place within a system that demands purpose from everyone in it.

Luna: Earth’s Moon

Last but not least is Luna, another key, explorable location in The Expanse: Osiris Reborn. Serving as one of the major, high-stakes hubs in the 24th-century solar system alongside Ceres and Mars, Luna is Earth’s closest neighbor and a vital, bustling hub of commerce, political power, and military activity under the control of the United Nations. Unlike the industrial feel of the Asteroid Belt, Luna features massive underground city complexes to protect its elite population from extreme radiation and low gravity, featuring both high-tech governmental facilities and immense corporate hubs.

For gameplay in Osiris Reborn, this means Luna could serve as a social hub where political intrigue, diplomacy, and navigating complex conspiracies take precedence over combat. As a premier location, players may engage in negotiations with UN officials, navigate political tension between Earthers, Martians, and Belters in the “safe” middle ground, and experience a stark, clean, but intensely claustrophobic environment that stands in contrast to the rest of the solar system. The location suggests opportunities for stealthy, espionage-driven missions within UN-controlled territory or high-end social interactions with influential characters.