# 电波奇缘~与时音相会的日子

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

- Steam appid: 4252250
- Developer: 黎厘星游戏工作室
- Released: 2026 · Genre: Adventure · List price: $2.99
- Deal grade: B (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $354 to $531 per month (mid $443)
- Opportunity score: $709/month at x1.60 dormancy multiplier
- Est. lifetime owners: 1.7k · Est. lifetime net revenue: $1.7k
- Review sentiment: 97% positive across 65 reviews (52 from Steam purchases)
- Review velocity: 17.7 reviews/month (6-month average)

## Why it's flagged

- No developer announcement on record, ever
- Last build shipped 5 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 | $804 |
| After VAT / sales tax (-13% blended) | $699 |
| After refunds (-9.5% median) | $633 |
| Net to developer (after Steam 30%) | $443 |

## Monthly review counts, oldest to newest (3 months)

2, 50, 1

## Estimated acquisition range

$10.6k to $21.3k (2-4x the trailing net annuity of $5.3k/year). Same error range applies.

## Markets by review language

- schinese: 100%

## 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/4252250
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.