# Psionic Sentry : Infinite

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

- Steam appid: 2598800
- Developer: Roy
- Publisher: 響雨互動娛樂
- Released: 2025 · Genre: Action · List price: $4.99
- Deal grade: C (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $128 to $192 per month (mid $160)
- Opportunity score: $216/month at x1.35 dormancy multiplier
- Est. lifetime owners: 6.7k · Est. lifetime net revenue: $11.2k
- Review sentiment: 83% positive across 233 reviews (210 from Steam purchases)
- Review velocity: 3.8 reviews/month (6-month average)

## Why it's flagged

- Developer silent for 18 months
- Last build shipped 10 months ago
- Store page localized in only 4 language(s)
- Last discounted 1 months ago, 9 sales in the last 12 months

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $291 |
| After VAT / sales tax (-13% blended) | $253 |
| After refunds (-9.5% median) | $229 |
| Net to developer (after Steam 30%) | $160 |

## Monthly review counts, oldest to newest (17 months)

106, 13, 5, 13, 4, 10, 22, 4, 7, 4, 4, 3, 4, 3, 2, 6, 5

## Missed seasonal-sale revenue (modeled)

Skipped 4 Steam seasonal sale window(s) in the last 17 months. Running a -50% discount in those windows is modeled at +$2.7k net in total, assuming a unit uplift of x3.0 (industry-typical for old catalog titles). Same ±30-50% error range applies.

## 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/2598800
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.