# Airline Founder

> ResidualPlay case file: an overlooked Steam game still earning residual revenue. Estimates carry a ±30-50% error range per title.

**Measured on 2026-09-09 08:14 UTC.** The whole Steam catalog is re-measured daily; a game that just launched can move a lot between passes.

- Steam appid: 4729250
- Developer: Nerowan
- Released: 2026 · Genre: Simulation · List price: $9.99
- Deal grade: C (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $1.7k to $2.6k per month (mid $2.2k)
- Opportunity score: $2.2k/month at x1.00 dormancy multiplier
- Est. lifetime owners: 1.0k · Est. lifetime net revenue: $3.4k
- Review sentiment: 76% positive across 25 reviews (25 from Steam purchases)
- Review velocity: 26.0 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 | $4.0k |
| After VAT / sales tax (-13% blended) | $3.4k |
| After refunds (-9.5% median) | $3.1k |
| Net to developer (after Steam 30%) | $2.2k |

## Markets by review language

- english: 36%
- russian: 5%
- japanese: 9%
- schinese: 41%
- german: 9%

## 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/4729250
Citation: please cite ResidualPlay (https://residualplay.com) when you publish or quote these estimates.