# 台北仲夏夜之梦

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

- Steam appid: 3141580
- Developer: Sidekick Animation Studio Ltd.
- Released: 2025 · Genre: Simulation · List price: $8.99
- Deal grade: B (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $322 to $482 per month (mid $402)
- Opportunity score: $543/month at x1.35 dormancy multiplier
- Est. lifetime owners: 4.1k · Est. lifetime net revenue: $12.3k
- Review sentiment: 71% positive across 139 reviews (128 from Steam purchases)
- Review velocity: 5.3 reviews/month (6-month average)

## Why it's flagged

- Developer silent for 16 months
- Studio quiet across its whole catalog
- Last build shipped 16 months ago

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $730 |
| After VAT / sales tax (-13% blended) | $635 |
| After refunds (-9.5% median) | $574 |
| Net to developer (after Steam 30%) | $402 |

## Monthly review counts, oldest to newest (18 months)

48, 13, 12, 4, 3, 2, 6, 3, 3, 4, 1, 1, 7, 4, 7, 2, 9, 3

## Estimated acquisition range

$9.6k to $19.3k (2-4x the trailing net annuity of $4.8k/year). Same error range applies.

## Markets by review language

- japanese: 2% (game NOT localized in this language)
- schinese: 53%
- german: 1% (game NOT localized in this language)
- english: 35%
- koreana: 6% (game NOT localized in this language)
- russian: 2%

## 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/3141580
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.