# Custodes of Elf Hearts

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

**Measured on 2026-09-21 16:09 UTC.** The whole Steam catalog is re-measured daily; a game that just launched can move a lot between passes.

- Steam appid: 3305840
- Developer:  Backflip WildCAT
- Publisher: LewdLoco
- Released: 2026 · Genre: Casual · List price: $7.99
- Deal grade: C (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $979 to $1.5k per month (mid $1.2k)
- Opportunity score: $1.2k/month at x1.00 dormancy multiplier
- Est. lifetime owners: 1.0k · Est. lifetime net revenue: $2.8k
- Review sentiment: 97% positive across 37 reviews (26 from Steam purchases)
- Review velocity: 18.3 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
- Store page localized in only 3 language(s)
- Last discounted 0 months ago, 1 sales in the last 12 months

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $2.2k |
| After VAT / sales tax (-13% blended) | $1.9k |
| After refunds (-9.5% median) | $1.7k |
| Net to developer (after Steam 30%) | $1.2k |

## Markets by review language

- english: 18%
- koreana: 9% (game NOT localized in this language)
- russian: 5% (game NOT localized in this language)
- schinese: 68% (game NOT localized in this language)

Localization gap: 82% of measured reviews are written in languages the game does not support (top: schinese). Localizing is likely immediate market expansion.

## Methodology

Units are estimated from Steam-purchase reviews times a release-cohort multiplier, 40-75x by year. Cohorts from 2020 on are calibrated against 182 sales milestones announced by developers; older ones follow the published Boxleiter tables. 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/3305840
Citation: please cite ResidualPlay (https://residualplay.com) when you publish or quote these estimates.