# Lost Wiki: Kozlovka

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

- Steam appid: 4018950
- Developer: yattytheman
- Released: 2026 · Genre: Indie · List price: $4.99
- Deal grade: C (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $10.1k to $15.2k per month (mid $12.6k)
- Opportunity score: $12.6k/month at x1.00 dormancy multiplier
- Est. lifetime owners: 49.4k · Est. lifetime net revenue: $82.6k
- Review sentiment: 97% positive across 1584 reviews (1543 from Steam purchases)
- Review velocity: 302.0 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 1 months ago
- Last build shipped 4 months ago
- Store page localized in only 2 language(s)

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $22.9k |
| After VAT / sales tax (-13% blended) | $20.0k |
| After refunds (-9.5% median) | $18.1k |
| Net to developer (after Steam 30%) | $12.6k |

## Monthly review counts, oldest to newest (5 months)

542, 247, 308, 172, 241

## Markets by review language

- russian: 8%
- french: 2% (game NOT localized in this language)
- german: 0% (game NOT localized in this language)
- spanish: 2% (game NOT localized in this language)
- japanese: 0% (game NOT localized in this language)
- schinese: 1% (game NOT localized in this language)
- brazilian: 3% (game NOT localized in this language)
- english: 80%
- koreana: 5% (game NOT localized in this language)

Localization gap: 13% of measured reviews are written in languages the game does not support (top: koreana). 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/4018950
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.