# Chornobyl Breakout

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

- Steam appid: 4069920
- Developer: Dark Duck Games
- Released: 2025 · Genre: Action · List price: $0.99
- Deal grade: C (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $33 to $50 per month (mid $41)
- Opportunity score: $66/month at x1.60 dormancy multiplier
- Est. lifetime owners: 1.4k · Est. lifetime net revenue: $467
- Review sentiment: 68% positive across 47 reviews (44 from Steam purchases)
- Review velocity: 5.0 reviews/month (6-month average)

## Why it's flagged

- No developer announcement on record, ever
- Last build shipped 6 months ago
- Store page localized in only 3 language(s)
- Last discounted 1 months ago, 8 sales in the last 12 months

## Where a gross dollar goes (monthly, at current velocity)

| Stage | USD/month |
|---|---|
| Gross storefront sales | $75 |
| After VAT / sales tax (-13% blended) | $66 |
| After refunds (-9.5% median) | $59 |
| Net to developer (after Steam 30%) | $41 |

## Monthly review counts, oldest to newest (7 months)

15, 8, 5, 8, 5, 2, 2

## Methodology

Units are estimated from Steam-purchase reviews times a release-cohort multiplier (Boxleiter method, 20-75x by year). 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/4069920
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.