# StarArc Echo

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

- Steam appid: 2877480
- Developer: 兔狐喵菇工作室
- Publisher: 糕薯科技
- Released: 2025 · Genre: Action · List price: $5.99
- Deal grade: C (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $114 to $171 per month (mid $142)
- Opportunity score: $213/month at x1.50 dormancy multiplier
- Est. lifetime owners: 4.7k · Est. lifetime net revenue: $9.5k
- Review sentiment: 71% positive across 208 reviews (148 from Steam purchases)
- Review velocity: 2.8 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 2 months ago
- Last build shipped 2 months ago
- Store page localized in only 3 language(s)
- No Steam discount in 4.0 years (deepest tracked: -0%)

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $258 |
| After VAT / sales tax (-13% blended) | $225 |
| After refunds (-9.5% median) | $203 |
| Net to developer (after Steam 30%) | $142 |

## Monthly review counts, oldest to newest (14 months)

95, 14, 3, 8, 8, 6, 5, 3, 1, 7, 2, 3, 1, 3

## Missed seasonal-sale revenue (modeled)

Skipped 8 Steam seasonal sale window(s) in the last 14 months. Running a -50% discount in those windows is modeled at +$3.4k net in total, assuming a unit uplift of x3.0 (industry-typical for old catalog titles). Same ±30-50% error range applies.

## 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/2877480
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.