# Zoo Wars

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

- Steam appid: 3989360
- Developer: Studio GG
- Released: 2026 · Genre: Action · List price: $3.99
- Deal grade: B (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $207 to $311 per month (mid $259)
- Opportunity score: $389/month at x1.50 dormancy multiplier
- Est. lifetime owners: 1.1k · Est. lifetime net revenue: $1.5k
- Review sentiment: 97% positive across 39 reviews (34 from Steam purchases)
- Review velocity: 7.8 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 0 months ago
- Last build shipped 0 months ago
- No Steam discount in 4.0 years (deepest tracked: -0%)

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $471 |
| After VAT / sales tax (-13% blended) | $409 |
| After refunds (-9.5% median) | $371 |
| Net to developer (after Steam 30%) | $259 |

## Monthly review counts, oldest to newest (4 months)

16, 6, 6, 3

## Missed seasonal-sale revenue (modeled)

Skipped 2 Steam seasonal sale window(s) in the last 4 months. Running a -50% discount in those windows is modeled at +$151 net in total, assuming a unit uplift of x3.0 (industry-typical for old catalog titles). Same ±30-50% error range applies.

## Estimated acquisition range

$6.2k to $12.4k (2-4x the trailing net annuity of $3.1k/year). Same error range applies.

## Markets by review language

- english: 15%
- koreana: 12%
- japanese: 71%
- schinese: 3%

## 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/3989360
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.