City Masterplan: UE5 City Builder with 24km Map Revealed
On April 8, 2026, independent development team 1:1 Studio officially revealed the first trailer for their realistic city-building PC game 《城市蓝图》(City Masterplan). The game, built using Unreal Engine 5, aims to overcome technical limitations in map size and building scale that have traditionally constrained the city-building genre. According to the developers, the team consists of veteran city-building players with thousands of hours of experience in the genre, seeking to address common frustrations like broken economic systems, cloned cities, and tedious manual lot filling.
The game’s most striking feature is its 24km x 24km seamless map, which eliminates traditional region unlocking and boundary restrictions. All buildings, roads, and vehicles are constructed using strict 1:1 real-world physical proportions, removing the “miniature model” feeling common in city-building games. The development team has meticulously crafted a vast library of high-quality Chinese and American architectural assets. Combined with UE5’s global illumination system, players can zoom in to experience realistic, lifelike urban scenes with authentic atmosphere.
City Masterplan features a deeply reconstructed economic and logistics system designed to address what developers call the “false simulation” problem in the genre. Warehouses and factories function as genuine operational hubs, with raw materials, goods, and transportation networks forming interconnected systems that eliminate “spawning goods out of thin air.” The game offers grid-free, high-freedom road placement tools enhanced with shape-adaptive algorithms. Buildings intelligently conform to irregular road edges, significantly reducing the tedious manual work of filling empty lots during later stages of city development.
The game is currently in intensive development with closed testing planned for summer 2026. Players can currently add the game to their wishlists or join official player groups to obtain test qualifications. The developers emphasize their goal of providing city-building enthusiasts with a simulation experience that combines immersion with control, leveraging UE5 technology to create a genuine solution to longstanding genre limitations. With its ambitious scale and attention to realistic urban simulation mechanics, City Masterplan represents a significant technical achievement in the city-building genre that could appeal to hardcore simulation fans.
