How this calculator works
Existing land uses the exact rarity rates you enter. Future land uses the published probability-weighted average of 0.5377012 gem per day. Boosting applies 2× only during the selected 30-minute periods, while collection efficiency reduces output for missed or full-tank time.
The growth model recalculates the nugget reward for every simulated ad, purchases squares when the balance permits, applies the current increasing land-cost rule, and adds referral rewards on simulation day 60.
Limits: future rarity is random, referral qualification depends on active days, prices vary by region, and cash-out is not enabled. Use the result to compare scenarios — not as a promise of profit.
Need the rules first? Read the beginner guide, rarity table and ad boost guide.