Steel Artery: Train City Builder is a unique colony simulation and city-building game where your entire settlement exists on a colossal train traveling through a steampunk fantasy world. Developed by SoulAge23 and published by Crytivo, you must transform the legendary locomotive Steelpolis into a thriving mobile city as a crumbling Empire struggles to survive. Each wagon is a new district, and your decisions affect thousands of autonomous citizens.
The game's premise is striking: once a symbol of imperial pride, Steelpolis is now a last resort. As its appointed mayor, you design layouts wagon by wagon, allocating limited space for housing, industry, and services while the train journeys through varied regions. Unlike static city builders, Steel Artery is constantly moving. You must stop in resource-rich areas to gather materials before moving on, blending long-term planning with tactical decisions about when to halt.
A demo is currently available, offering about two hours of gameplay covering the tutorial and first region. The full game is scheduled for a PC release via Steam in 2026. The developer has been actively gathering feedback through playtests and community updates, refining systems like worker autonomy and resource management.