# Astro Protocol

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

- Steam appid: 3727420
- Developer: Null Vector Studios
- Released: 2026 · Genre: Strategy · List price: $11.99
- Deal grade: C (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $804 to $1.2k per month (mid $1.0k)
- Opportunity score: $1.0k/month at x1.00 dormancy multiplier
- Est. lifetime owners: 2.0k · Est. lifetime net revenue: $7.8k
- Review sentiment: 94% positive across 65 reviews (61 from Steam purchases)
- Review velocity: 10.0 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 1 language(s)
- Last discounted 1 months ago, 5 sales in the last 12 months

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $1.8k |
| After VAT / sales tax (-13% blended) | $1.6k |
| After refunds (-9.5% median) | $1.4k |
| Net to developer (after Steam 30%) | $1.0k |

## Monthly review counts, oldest to newest (6 months)

28, 11, 3, 5, 10, 3

## Markets by review language

- french: 2% (game NOT localized in this language)
- english: 97%
- russian: 2% (game NOT localized in this language)

## 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/3727420
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.