Always upgrade the planet with the lowest ROI (seconds).
If you want to build a personalized Google Sheet tailored to your specific playstyle, follow this foundational blueprint. Step 1: Set Up Your Master Data Tables idle planet miner spreadsheet
| Project Name | Current Level | Current Output (t/s) | Upgrade Cost | Estimated Output | ROI Score | Time to Afford | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Copper Mine | 10 | 500 | 12,000 | 550 | Formula | Formula | | Iron Drill | 5 | 200 | 8,000 | 240 | Formula | Formula | | Rover Engine | 2 | N/A | 50,000 | +10% Speed | N/A | Formula | Always upgrade the planet with the lowest ROI (seconds)
Once you progress past your first few galaxy sales, your spreadsheet needs to evolve from a basic calculator into a predictive forecasting tool. Colonization Forecasting Happy mining
The community-driven "Mastersheet" for Idle Planet Miner, available on Google Sheets, serves as a comprehensive tool for calculating optimal progress, credit gains, and resource management. It features key metrics to analyze planet upgrade efficiency, smelting/crafting requirements, and Mothership room priorities to maximize galaxy value. For the latest version, refer to the community update at
If you have any specific strategies or unique metrics you track in your own spreadsheet, share them with the community below. Happy mining!