Economy & Progression Simulator

Use when you are tuning progression and want to see what your numbers do over weeks of play before players do. You give the XP curve, income, upgrade costs and a few profiles (how often and how long each type of player plays, and what they buy); a seeded script plays them day by day and writes a CSV, a spreadsheet, a chart and a short report with days to each milestone, coins earned and spent, and two flags: coins piling up with nothing left to buy, and a level-up that suddenly needs far more XP. It then proposes simple parameter changes and shows before and after.

Do not use it to forecast how real players will behave: the profiles are your assumptions, and the model has one currency, one XP track and one kind of upgrade.

Requires: Python 3.9+. The spreadsheet needs openpyxl and the chart needs matplotlib (pip install openpyxl matplotlib); without them the script still writes the CSV, JSON and report and says which file it skipped. No internet access needed.