# ダンジョンに生息だ！

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

- Steam appid: 3894980
- Developer: ドクローネ
- Publisher: 腐葉堂
- Released: 2025 · Genre: Indie · List price: $7.99
- Deal grade: D (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $214 to $322 per month (mid $268)
- Opportunity score: $268/month at x1.00 dormancy multiplier
- Est. lifetime owners: 3.5k · Est. lifetime net revenue: $9.4k
- Review sentiment: 90% positive across 111 reviews (110 from Steam purchases)
- Review velocity: 4.0 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 7 months ago
- Last build shipped 7 months ago
- Store page localized in only 1 language(s)
- Last discounted 1 months ago, 3 sales in the last 12 months

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $486 |
| After VAT / sales tax (-13% blended) | $423 |
| After refunds (-9.5% median) | $383 |
| Net to developer (after Steam 30%) | $268 |

## Monthly review counts, oldest to newest (7 months)

84, 7, 4, 5, 1, 3, 4

## Missed seasonal-sale revenue (modeled)

Skipped 2 Steam seasonal sale window(s) in the last 7 months. Running a -50% discount in those windows is modeled at +$2.9k 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/3894980
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.