# Biohazardous Love ☣️

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

**Measured on 2026-09-07 08:39 UTC.** The whole Steam catalog is re-measured daily; a game that just launched can move a lot between passes.

- Steam appid: 3983830
- Developer: TheBigO Games
- Publisher: EroBits
- Released: 2025 · Genre: Action · List price: $5.99
- Deal grade: B (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $416 to $623 per month (mid $519)
- Opportunity score: $987/month at x1.90 dormancy multiplier
- Est. lifetime owners: 1.0k · Est. lifetime net revenue: $2.0k
- Review sentiment: 93% positive across 29 reviews (25 from Steam purchases)
- Review velocity: 10.3 reviews/month (6-month average)

## Why it's flagged

- No developer announcement on record, ever
- Studio quiet across its whole catalog
- Store page localized in only 1 language(s)

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $942 |
| After VAT / sales tax (-13% blended) | $820 |
| After refunds (-9.5% median) | $742 |
| Net to developer (after Steam 30%) | $519 |

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

23, 1

## Estimated acquisition range

$12.5k to $24.9k (2-4x the trailing net annuity of $6.2k/year). Same error range applies.

## Markets by review language

- english: 96% (game NOT localized in this language)
- russian: 4% (game NOT localized in this language)

Localization gap: 100% of measured reviews are written in languages the game does not support (top: english). Localizing is likely immediate market expansion.

## Methodology

Units are estimated from Steam-purchase reviews times a release-cohort multiplier, 40-75x by year. Cohorts from 2020 on are calibrated against 182 sales milestones announced by developers; older ones follow the published Boxleiter tables. 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/3983830
Citation: please cite ResidualPlay (https://residualplay.com) when you publish or quote these estimates.