# Hell's 8th Avenue: Miori's Mysterious Notebook

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

- Steam appid: 3641720
- Developer: Magical Ponpon
- Publisher: Saikey Studios
- Released: 2025 · Genre: Adventure · List price: $10.99
- Deal grade: D (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $233 to $350 per month (mid $292)
- Opportunity score: $292/month at x1.00 dormancy multiplier
- Est. lifetime owners: 1.5k · Est. lifetime net revenue: $5.7k
- Review sentiment: 76% positive across 62 reviews (48 from Steam purchases)
- Review velocity: 3.2 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 2 months ago
- Last build shipped 12 months ago
- Store page localized in only 4 language(s)

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $530 |
| After VAT / sales tax (-13% blended) | $461 |
| After refunds (-9.5% median) | $417 |
| Net to developer (after Steam 30%) | $292 |

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

30, 3, 9, 2, 2, 2, 1

## 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/3641720
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.