# 东北往事

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

- Steam appid: 4056810
- Developer: 二狗科技
- Released: 2026 · Genre: RPG · List price: $8.99
- Deal grade: C (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $3.7k to $5.6k per month (mid $4.7k)
- Opportunity score: $4.7k/month at x1.00 dormancy multiplier
- Est. lifetime owners: 4.3k · Est. lifetime net revenue: $12.9k
- Review sentiment: 84% positive across 181 reviews (134 from Steam purchases)
- Review velocity: 62.0 reviews/month (6-month average)

## Why it's flagged

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

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $8.5k |
| After VAT / sales tax (-13% blended) | $7.4k |
| After refunds (-9.5% median) | $6.7k |
| Net to developer (after Steam 30%) | $4.7k |

## Monthly review counts, oldest to newest (2 months)

101, 23

## Markets by review language

- english: 5%
- koreana: 3% (game NOT localized in this language)
- schinese: 92%

## 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/4056810
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.