# Isekai Bistro

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

- Steam appid: 3570940
- Developer: DarkShadow Studio 
- Publisher: Mango Party
- Released: 2026 · Genre: Casual · List price: $10.99
- Deal grade: C (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $3.1k to $4.6k per month (mid $3.8k)
- Opportunity score: $3.8k/month at x1.00 dormancy multiplier
- Est. lifetime owners: 5.6k · Est. lifetime net revenue: $20.5k
- Review sentiment: 80% positive across 194 reviews (174 from Steam purchases)
- Review velocity: 41.8 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 4 months ago
- Last build shipped 3 months ago
- Last discounted 0 months ago, 3 sales in the last 12 months

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $7.0k |
| After VAT / sales tax (-13% blended) | $6.1k |
| After refunds (-9.5% median) | $5.5k |
| Net to developer (after Steam 30%) | $3.8k |

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

101, 40, 11, 15

## 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 +$1.2k 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

- english: 30%
- koreana: 9% (game NOT localized in this language)
- russian: 10% (game NOT localized in this language)
- spanish: 1% (game NOT localized in this language)
- japanese: 8%
- schinese: 39%
- brazilian: 1% (game NOT localized in this language)
- french: 1% (game NOT localized in this language)

Localization gap: 22% 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/3570940
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.