# Professor Simulator: Desktop Lab

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

- Steam appid: 3894790
- Developer: HCL
- Released: 2026 · Genre: Casual · List price: $7.99
- Deal grade: C (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $3.7k to $5.5k per month (mid $4.6k)
- Opportunity score: $4.6k/month at x1.00 dormancy multiplier
- Est. lifetime owners: 4.6k · Est. lifetime net revenue: $12.3k
- Review sentiment: 88% positive across 153 reviews (143 from Steam purchases)
- Review velocity: 69.0 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 0 months ago
- Last build shipped 0 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 | $8.4k |
| After VAT / sales tax (-13% blended) | $7.3k |
| After refunds (-9.5% median) | $6.6k |
| Net to developer (after Steam 30%) | $4.6k |

## Monthly review counts, oldest to newest (2 months)

133, 5

## Markets by review language

- english: 6%
- koreana: 4%
- japanese: 1%
- schinese: 89%

## 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/3894790
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.