# Secrets of Blackrock Manor - Escape Room

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

- Steam appid: 3517980
- Developer: Biri Biri
- Released: 2025 · Genre: Adventure · List price: $9.99
- Deal grade: D (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $447 to $670 per month (mid $558)
- Opportunity score: $558/month at x1.00 dormancy multiplier
- Est. lifetime owners: 7.0k · Est. lifetime net revenue: $23.5k
- Review sentiment: 81% positive across 231 reviews (219 from Steam purchases)
- Review velocity: 6.7 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 3 months ago
- Studio active elsewhere (2 titles tracked), so this one may welcome a partner
- Last build shipped 6 months ago
- Last discounted 1 months ago, 8 sales in the last 12 months

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $1.0k |
| After VAT / sales tax (-13% blended) | $882 |
| After refunds (-9.5% median) | $798 |
| Net to developer (after Steam 30%) | $558 |

## Monthly review counts, oldest to newest (12 months)

88, 22, 24, 6, 6, 30, 10, 6, 3, 5, 9, 7

## Markets by review language

- russian: 4%
- schinese: 6%
- french: 10%
- german: 4%
- english: 61%
- koreana: 10%
- spanish: 2%
- japanese: 1%
- brazilian: 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/3517980
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.