# 书恋与君：美少女教我追系花

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

- Steam appid: 2739420
- Developer: 磷光工作室
- Released: 2025 · Genre: Adventure · List price: $11.99
- Deal grade: B (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $201 to $302 per month (mid $251)
- Opportunity score: $339/month at x1.35 dormancy multiplier
- Est. lifetime owners: 1.7k · Est. lifetime net revenue: $6.9k
- Review sentiment: 85% positive across 61 reviews (54 from Steam purchases)
- Review velocity: 2.5 reviews/month (6-month average)

## Why it's flagged

- Developer silent for 13 months
- Studio active elsewhere (2 titles tracked), so this one may welcome a partner
- Last build shipped 13 months ago
- Store page localized in only 1 language(s)

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $456 |
| After VAT / sales tax (-13% blended) | $397 |
| After refunds (-9.5% median) | $359 |
| Net to developer (after Steam 30%) | $251 |

## Monthly review counts, oldest to newest (12 months)

23, 8, 2, 3, 3, 1, 1, 4, 3, 1, 1, 5

## Estimated acquisition range

$6.0k to $12.1k (2-4x the trailing net annuity of $3.0k/year). Same error range applies.

## Markets by review language

- schinese: 100% (game NOT localized in this language)

Localization gap: 100% 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/2739420
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.