# Darwin's Paradox!

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

- Steam appid: 2989180
- Developer: ZDT Studio
- Publisher: KONAMI
- Released: 2026 · Genre: Action · List price: $24.99
- Deal grade: C (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $31.0k to $46.5k per month (mid $38.8k)
- Opportunity score: $38.8k/month at x1.00 dormancy multiplier
- Est. lifetime owners: 24.7k · Est. lifetime net revenue: $206.7k
- Review sentiment: 88% positive across 1107 reviews (771 from Steam purchases)
- Review velocity: 185.0 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 2 months ago
- Last build shipped 4 months ago

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $70.4k |
| After VAT / sales tax (-13% blended) | $61.2k |
| After refunds (-9.5% median) | $55.4k |
| Net to developer (after Steam 30%) | $38.8k |

## Monthly review counts, oldest to newest (4 months)

387, 104, 69, 180

## Markets by review language

- spanish: 4%
- brazilian: 2%
- german: 10%
- english: 60%
- koreana: 1% (game NOT localized in this language)
- japanese: 1%
- schinese: 8% (game NOT localized in this language)
- french: 8%
- russian: 7% (game NOT localized in this language)

Localization gap: 15% of measured reviews are written in languages the game does not support (top: schinese). Localizing is likely immediate market expansion.

## 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/2989180
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.