# Ocean Keeper Co-op Drill Multiplayer

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

- Steam appid: 3937360
- Developer: RetroStyle Games
- Released: 2025 · Genre: Action · List price: $5.99
- Deal grade: D (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $288 to $432 per month (mid $360)
- Opportunity score: $360/month at x1.00 dormancy multiplier
- Est. lifetime owners: 4.4k · Est. lifetime net revenue: $8.9k
- Review sentiment: 76% positive across 157 reviews (138 from Steam purchases)
- Review velocity: 7.2 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 0 months ago
- Studio active elsewhere (3 titles tracked), so this one may welcome a partner
- Last build shipped 0 months ago

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $653 |
| After VAT / sales tax (-13% blended) | $568 |
| After refunds (-9.5% median) | $514 |
| Net to developer (after Steam 30%) | $360 |

## Monthly review counts, oldest to newest (7 months)

109, 30, 2, 5, 1, 2, 3

## Markets by review language

- french: 2%
- english: 80%
- russian: 13% (game NOT localized in this language)
- spanish: 1%
- japanese: 4%
- schinese: 1%

Localization gap: 13% of measured reviews are written in languages the game does not support (top: russian). Localizing is likely immediate market expansion.

## 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/3937360
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.