# Only One

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

**Measured on 2026-08-30 06:56 UTC.** The whole Steam catalog is re-measured daily; a game that just launched can move a lot between passes.

- Steam appid: 4315910
- Developer: RebelBinary
- Released: 2026 · Genre: Action · List price: $7.99
- Deal grade: B (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $2.0k to $3.1k per month (mid $2.6k)
- Opportunity score: $3.3k/month at x1.30 dormancy multiplier
- Est. lifetime owners: 1.6k · Est. lifetime net revenue: $4.4k
- Review sentiment: 93% positive across 46 reviews (41 from Steam purchases)
- Review velocity: 38.3 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 1 language(s)

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $4.7k |
| After VAT / sales tax (-13% blended) | $4.1k |
| After refunds (-9.5% median) | $3.7k |
| Net to developer (after Steam 30%) | $2.6k |

## Estimated acquisition range

$61.7k to $123.4k (2-4x the trailing net annuity of $30.8k/year). Same error range applies.

## Markets by review language

- russian: 17% (game NOT localized in this language)
- spanish: 10% (game NOT localized in this language)
- schinese: 5% (game NOT localized in this language)
- brazilian: 5% (game NOT localized in this language)
- french: 2% (game NOT localized in this language)
- english: 61% (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/4315910
Citation: please cite ResidualPlay (https://residualplay.com) when you publish or quote these estimates.