# 怪異番号~20✕✕(ニーマルバツバツ)~

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

- Steam appid: 4154100
- Developer: EBA GAME
- Released: 2026 · Genre: Indie · List price: $2.99
- Deal grade: B (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $357 to $535 per month (mid $446)
- Opportunity score: $714/month at x1.60 dormancy multiplier
- Est. lifetime owners: 2.9k · Est. lifetime net revenue: $3.0k
- Review sentiment: 97% positive across 95 reviews (92 from Steam purchases)
- Review velocity: 17.8 reviews/month (6-month average)

## Why it's flagged

- No developer announcement on record, ever
- Last build shipped 3 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 | $810 |
| After VAT / sales tax (-13% blended) | $705 |
| After refunds (-9.5% median) | $638 |
| Net to developer (after Steam 30%) | $446 |

## Monthly review counts, oldest to newest (5 months)

41, 28, 11, 8, 1

## Estimated acquisition range

$10.7k to $21.4k (2-4x the trailing net annuity of $5.4k/year). Same error range applies.

## Markets by review language

- koreana: 1% (game NOT localized in this language)
- japanese: 99%

## 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/4154100
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.