# Runren Simulator

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

- Steam appid: 4099900
- Developer: K.K.
- Released: 2026 · Genre: Indie · List price: $1.99
- Deal grade: B (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $267 to $400 per month (mid $334)
- Opportunity score: $534/month at x1.60 dormancy multiplier
- Est. lifetime owners: 1.9k · Est. lifetime net revenue: $1.3k
- Review sentiment: 92% positive across 65 reviews (60 from Steam purchases)
- Review velocity: 20.0 reviews/month (6-month average)

## Why it's flagged

- No developer announcement on record, ever
- Last build shipped 4 months ago
- Store page localized in only 1 language(s)

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $606 |
| After VAT / sales tax (-13% blended) | $527 |
| After refunds (-9.5% median) | $477 |
| Net to developer (after Steam 30%) | $334 |

## Monthly review counts, oldest to newest (3 months)

52, 8, 0

## Estimated acquisition range

$8.0k to $16.0k (2-4x the trailing net annuity of $4.0k/year). Same error range applies.

## Markets by review language

- schinese: 100%

## 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/4099900
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.