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The open world of Cinder City is a reimagined version of Seoul, built in Unreal Engine 5 as a seamless space for players to explore. Set in a post-apocalyptic, alternate-history timeline, the world blends real geography with science-fiction elements, giving players a recognizable city transformed by apocalypse and advanced technology. This page covers the structure of the open world, the real districts it draws on, its approximate scale, and how players share the field.

A Reimagined Seoul

The setting is an alternate-history Seoul where 23rd-century technology has spread through a 21st-century city. Rather than a generic future metropolis, the world is rooted in a real place, which gives exploration a sense of authenticity. The Unreal Engine 5 foundation supports a seamless open world, letting players move through the city and its encounters without hard breaks. For the broader lore and story behind this world, see the Setting and Story page.

Real Districts

The world draws on real Seoul districts to ground its science-fiction premise. Areas confirmed to feature include Samseong-dong and Nonhyeon-dong, both genuine neighborhoods within the city. Building the open world around recognizable districts reinforces the alternate-history framing, so the futuristic and post-apocalyptic elements play out across streets and locations rooted in the real Seoul.

World Scale

The open world is approximately 7 by 7 kilometers in size, based on what has been shown so far, with the playable space organized into a small number of zones around launch. These figures are early indications and may shift as development continues, but they point to a dense, focused world rather than an unbounded sprawl. The scale is suited to the game's mix of street-level firefights, larger mech battles, and confined monster encounters.

A Shared Field

As an MMO, the world is shared among many players at once. Early showings indicate that a single shared field holds roughly 150 to 200 players, creating a populated, social space rather than an empty wilderness. This concurrency supports the game's online identity, with many players moving through the same city together. The exact figure may be refined as testing continues. How players group up within this field is covered on the Co-op and Multiplayer page.

Dynamic Events

The open world is designed to feel active, with dynamic events surfacing as players explore. These keep the city alive and give players reasons to engage with the world beyond fixed objectives. Combined with the variety of combat encounters, the events help the world feel responsive. For how exploration ties into the wider gameplay loop, see Gameplay Overview, and for the encounters waiting in the world see Combat and Gunplay.