# 西西弗斯放置（Sisyphus Idle）

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

**Measured on 2026-08-30 04:54 UTC.** The whole Steam catalog is re-measured daily; a game that just launched can move a lot between passes.

- Steam appid: 5048740
- Developer:  Lazymangamestudio
- Released: 2026 · Genre: Casual · List price: $2.99
- Deal grade: B (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $1.0k to $1.6k per month (mid $1.3k)
- Opportunity score: $1.7k/month at x1.30 dormancy multiplier
- Est. lifetime owners: 2.3k · Est. lifetime net revenue: $2.3k
- Review sentiment: 100% positive across 62 reviews (57 from Steam purchases)
- Review velocity: 51.5 reviews/month (6-month average)

## Why it's flagged

- Developer active, last post 0 months ago
- Last build shipped 0 months ago
- Store page localized in only 2 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 | $2.3k |
| After VAT / sales tax (-13% blended) | $2.0k |
| After refunds (-9.5% median) | $1.8k |
| Net to developer (after Steam 30%) | $1.3k |

## Estimated acquisition range

$31.0k to $61.9k (2-4x the trailing net annuity of $15.5k/year). Same error range applies.

## Markets by review language

- schinese: 100%

## 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/5048740
Citation: please cite ResidualPlay (https://residualplay.com) when you publish or quote these estimates.