# Boob Simulator > ResidualPlay case file: an overlooked Steam game still earning residual revenue. Estimates carry a ±30-50% error range per title. **Measured on 2026-09-24 08:11 UTC.** The whole Steam catalog is re-measured daily; a game that just launched can move a lot between passes. - Steam appid: 4320510 - Developer: Goon Games - Released: 2026 · Genre: Simulation · List price: $6.99 - Deal grade: C (A = dormant with >=$5k/mo opportunity, D = low signal) - Est. net residual revenue: $1.6k to $2.5k per month (mid $2.1k) - Opportunity score: $2.1k/month at x1.00 dormancy multiplier - Est. lifetime owners: 1.5k · Est. lifetime net revenue: $3.6k - Review sentiment: 34% positive across 41 reviews (38 from Steam purchases) - Review velocity: 35.2 reviews/month (6-month average) ## Why it's flagged - Developer active, last post 0 months ago ## Where a gross dollar goes (monthly, at current velocity) | Stage | USD/month | |---|---| | Gross storefront sales | $3.7k | | After VAT / sales tax (-13% blended) | $3.3k | | After refunds (-9.5% median) | $2.9k | | Net to developer (after Steam 30%) | $2.1k | ## Markets by review language - english: 34% - russian: 38% - spanish: 17% - schinese: 7% - brazilian: 3% ## Methodology Units are estimated from Steam-purchase reviews times a release-cohort multiplier, 40-75x by year. Cohorts from 2020 on are calibrated against 182 sales milestones announced by developers; older ones follow the published Boxleiter tables. Revenue uses an effective price (lifetime discounts and regional pricing) and nets out VAT (~13%), refunds (~9.5%) and Steam's 30% cut: roughly 55% of gross reaches the developer. Source: https://residualplay.com/game/4320510 Citation: please cite ResidualPlay (https://residualplay.com) when you publish or quote these estimates.