# Devil of the Plague

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

- Steam appid: 3429890
- Developer: SoulByte Games
- Released: 2026 · Genre: Action · List price: $9.99
- Deal grade: C (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $3.6k to $5.4k per month (mid $4.5k)
- Opportunity score: $4.5k/month at x1.00 dormancy multiplier
- Est. lifetime owners: 5.3k · Est. lifetime net revenue: $17.8k
- Review sentiment: 80% positive across 210 reviews (166 from Steam purchases)
- Review velocity: 53.7 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 1 months ago
- Last build shipped 1 months ago

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $8.2k |
| After VAT / sales tax (-13% blended) | $7.1k |
| After refunds (-9.5% median) | $6.4k |
| Net to developer (after Steam 30%) | $4.5k |

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

115, 25, 21

## Markets by review language

- german: 11%
- english: 53%
- koreana: 2%
- russian: 27%
- spanish: 4%
- brazilian: 2% (game NOT localized in this language)
- french: 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/3429890
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.