# Cavern Adventurers

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

- Steam appid: 2848360
- Developer: Kairosoft Co.,Ltd
- Released: 2025 · Genre: Adventure · List price: $8.99
- Deal grade: B (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $332 to $497 per month (mid $414)
- Opportunity score: $663/month at x1.60 dormancy multiplier
- Est. lifetime owners: 3.6k · Est. lifetime net revenue: $10.7k
- Review sentiment: 64% positive across 155 reviews (111 from Steam purchases)
- Review velocity: 5.5 reviews/month (6-month average)

## Why it's flagged

- No developer announcement on record, ever
- Studio active elsewhere (43 titles tracked), so this one may welcome a partner
- Last build shipped 16 months ago
- Last discounted 5 months ago, 4 sales in the last 12 months

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $752 |
| After VAT / sales tax (-13% blended) | $655 |
| After refunds (-9.5% median) | $592 |
| Net to developer (after Steam 30%) | $414 |

## Monthly review counts, oldest to newest (15 months)

46, 6, 3, 2, 2, 4, 1, 7, 4, 3, 1, 2, 1, 16, 10

## Missed seasonal-sale revenue (modeled)

Skipped 8 Steam seasonal sale window(s) in the last 15 months. Running a -50% discount in those windows is modeled at +$1.8k net in total, assuming a unit uplift of x3.0 (industry-typical for old catalog titles). Same ±30-50% error range applies.

## Estimated acquisition range

$9.9k to $19.9k (2-4x the trailing net annuity of $5.0k/year). Same error range applies.

## Markets by review language

- english: 20%
- koreana: 3%
- russian: 2% (game NOT localized in this language)
- japanese: 24%
- schinese: 47%
- french: 1% (game NOT localized in this language)
- german: 3% (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/2848360
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.