What is City Builder Tools?
City Builder Tools is a free, browser-based collection of planners and calculators for Manor Lords and other medieval city-builders — Farthest Frontier, Medieval Dynasty and Going Medieval. Everything runs in your browser: there is nothing to install, no account to create, and your plans never leave your device unless you choose to share a link.
Where the data comes from
Building footprints, coverage radii, crop yields and production recipes are extracted from each game’s files and community resources, and are versioned against the game build they came from. Some values — especially market and approval mechanics — are community estimates rather than exact figures, and are labelled as estimates in the tools. Each tool lists its specific data source in its footer.
Not affiliated with the games
This is an independent, fan-made project. It is not affiliated with, endorsed by, or associated with Slavic Magic, Hooded Horse, or any of the studios and publishers behind the games these tools support. All game names and trademarks belong to their respective owners.
Contact & reporting a bug
Found a wrong value, a broken planner, or have a tool you’d like to see? Email [email protected]. For bug reports, it helps to include the tool name, your browser, and a shared link to the plan if the issue is layout-specific.