HQ Upgrade Checker
level cost · inventory by location · XIT export
⌂ Tools
⚿ API key and username are saved in your browser only — never sent anywhere except FIO.
Pick your From / To HQ levels, then Check against storage.
HQ upgrade costs: Prosperous Universe game data (levels 1–50), verified in-game via the XIT HQ Upgrade Calculator. Table cross-checked against PRUNplanner (MIT License © 2025 Jan Placht).