One question at a time.
Legacy Plan Desk brings army budgets, unit comparisons, resource ledgers, battle review prompts, upgrade sequences and a short quiz into one workspace. Start with the question you want to answer, then enter the assumptions that match your session.
Keep the working beside the answer.
Army costs use quantity × entered per-unit cost. Resource planning uses a constant income rate over a chosen time. Upgrade planning adds the purchase sequence you enter. Each result shows its interpretation and method so that you can check the arithmetic.
Use your own numbers.
Defaults are illustrative examples. Replace unit prices, population assumptions, income rates and upgrade costs with values relevant to your current mode and version. The optional mana ledger is a custom scenario, kept separate from the gold calculation.
Keep the copy you need.
All six tools are free and require no sign-up. Inputs stay in the current browser page. Download the working as text or use Print / Save PDF when you want a copy. Editing inputs clears the previous result; Reset restores the defaults.
Help improve the desk.
Use Contact to report a reproducible calculation issue or accessibility barrier. Include a made-up example, the selected settings and the output you expected.