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THE FEUTEX TOOLKIT

Escalating Upgrade Cost

Sum a fixed number of upgrades with geometric price growth.

Game Design workspace● Runs in your browser
01 Your input
02 Your result
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FormulaTotal cost = growth===1?base*n:base*(growth**n-1)/(growth-1); Next upgrade price = base*growth**n

Worked example

Inputs

First upgrade price
100 currency
Price multiplier
1.5 ×
Number of purchases
4 upgrades

Expected results

Total cost
812.5 currency
Next upgrade price
506.25 currency

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Sum a fixed number of upgrades with geometric price growth.
  2. Set first upgrade price, price multiplier, number of purchases in the indicated units.
  3. Calculate and compare total cost, next upgrade price.

Try this example

{
  "base": 100,
  "growth": 1.5,
  "n": 4
}

Accuracy and scope

Idealized educational model. Enter measured values in the displayed units; real systems may require additional corrections. User-defined game-rule arithmetic; no current game mechanics or search-volume claims.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.