# Strongest☆Angel Zerachiel!

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

- Steam appid: 2804550
- Developer: Kujirabo。
- Publisher: OTAKU Plan
- Released: 2025 · Genre: Adventure · List price: $17.99
- Deal grade: D (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $282 to $422 per month (mid $352)
- Opportunity score: $352/month at x1.00 dormancy multiplier
- Est. lifetime owners: 2.9k · Est. lifetime net revenue: $17.8k
- Review sentiment: 92% positive across 131 reviews (92 from Steam purchases)
- Review velocity: 2.3 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 6 months ago
- Studio active elsewhere (3 titles tracked), so this one may welcome a partner
- Last build shipped 17 months ago
- Store page localized in only 3 language(s)
- Last discounted 0 months ago, 8 sales in the last 12 months

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $639 |
| After VAT / sales tax (-13% blended) | $556 |
| After refunds (-9.5% median) | $503 |
| Net to developer (after Steam 30%) | $352 |

## Monthly review counts, oldest to newest (16 months)

25, 24, 3, 2, 6, 4, 3, 4, 2, 4, 3, 2, 4, 2, 1, 2

## Missed seasonal-sale revenue (modeled)

Skipped 3 Steam seasonal sale window(s) in the last 16 months. Running a -50% discount in those windows is modeled at +$679 net in total, assuming a unit uplift of x3.0 (industry-typical for old catalog titles). Same ±30-50% error range applies.

## Markets by review language

- schinese: 71%
- french: 1% (game NOT localized in this language)
- german: 1% (game NOT localized in this language)
- english: 16%
- koreana: 1% (game NOT localized in this language)
- russian: 6% (game NOT localized in this language)
- japanese: 2%

Localization gap: 10% 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/2804550
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.