# MILF Sex Prison: Sector X

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

- Steam appid: 4039800
- Developer: Kinky Business Group
- Released: 2025 · Genre: Adventure · List price: $7.99
- Deal grade: D (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $643 to $965 per month (mid $804)
- Opportunity score: $804/month at x1.00 dormancy multiplier
- Est. lifetime owners: 1.9k · Est. lifetime net revenue: $5.1k
- Review sentiment: 80% positive across 71 reviews (60 from Steam purchases)
- Review velocity: 12.0 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 5 months ago
- Studio active elsewhere (5 titles tracked), so this one may welcome a partner
- Last build shipped 9 months ago

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $1.5k |
| After VAT / sales tax (-13% blended) | $1.3k |
| After refunds (-9.5% median) | $1.1k |
| Net to developer (after Steam 30%) | $804 |

## Monthly review counts, oldest to newest (5 months)

52, 3, 2, 2, 1

## Markets by review language

- english: 74%
- koreana: 5%
- russian: 14%
- schinese: 5%
- german: 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/4039800
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.