Calculators for indie game devs
shipping on Steam

Free, data-driven tools based on research from Chris Zukowski, Jake Birkett, and GameDiscoverCo. No sign-up. Runs in your browser.

W

Revenue Estimator

Estimate week 1, year 1, and lifetime revenue from your wishlist count using the Birkett ratio.

InWishlists, Birkett ratio, price, launch discount
OutUnit sales, gross/net revenue, lifetime projections
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X

Boxleiter Estimator

Estimate total sales and revenue for any Steam game using its public review count, positivity, and price.

InReviews, positivity, price, release era, genre
OutSales range (low/mid/high), gross/net revenue range
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B

Breakeven Calculator

Calculate how many units you need to sell to recoup development, marketing, and other costs.

InDev cost, marketing, price, tax rate
OutBreakeven units, wishlists needed, ROI targets
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%

Sale Event Calculator

Plan seasonal sale pricing and estimate revenue at different discount tiers.

InPrice, discount %, baseline daily sales, boost multiplier
OutSale revenue, uplift vs. baseline, discount comparison table
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R

Review Estimator

Estimate reviews from sales or reverse-engineer sales from your review count.

InUnits sold or review count, review rate, positive rate
OutReviews/sales estimate, revenue, visibility tier
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G

Wishlist Goal Calculator

Set a wishlist target and track your pace toward launch day.

InCurrent wishlists, daily rate, target, launch date
OutProjected date, required pace, milestone progress
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Data-driven

Based on GameDiscoverCo's analysis of hundreds of Steam launches, Birkett's wishlist ratios, and Zukowski's marketing benchmarks.

Fully editable

Every multiplier and assumption is an input you can tune. Defaults are conservative so estimates stay realistic.

Shareable

Copy a link with your numbers baked in. Share projections with your team, publisher, or community.

Connected

Price and Steam cut sync across all calculators. Change them once, every tool updates.

Sources & methodology
  • Birkett ratio — Jake Birkett's original dataset of 14 games. Modern median from GameDiscoverCo: 0.10–0.20. Underlying conversion: 3–7% of wishlisters buy in W1 (publisher portfolio data), organic buyers add on top.
  • Year 1 multiplier (~3x) — GameDiscoverCo median of ~3.05x across hundreds of games (2019–2024).
  • Lifetime multiplier (~3x Y1) — Long-tail data: ~8–9x Week 1 revenue by Year 5.
  • Review rate (1–3%) — Industry consensus from multiple developer reports.
  • Steam revenue share — 30% Valve cut (tiered: 25% above $10M, 20% above $50M). Separate ~10% field for refunds and regional sales tax (VAT/GST).

These are estimates, not predictions. Actual results vary by genre, marketing, timing, and game quality.