# 天天地下城

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

- Steam appid: 1849310
- Developer: BIFROST CLOUD PTE. LTD.
- Released: 2022 · Genre: Action · List price: $4.99
- Deal grade: B (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $946 to $1.4k per month (mid $1.2k)
- Opportunity score: $2.5k/month at x2.10 dormancy multiplier
- Est. lifetime owners: 3.4k · Est. lifetime net revenue: $4.3k
- Review sentiment: 97% positive across 107 reviews (107 from Steam purchases)
- Review velocity: 38.0 reviews/month (6-month average)

## Why it's flagged

- No developer announcement on record, ever
- Studio inactive: no public activity across 2 tracked titles
- Last build shipped 4.7 years ago
- Store page localized in only 1 language(s)

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $2.1k |
| After VAT / sales tax (-13% blended) | $1.9k |
| After refunds (-9.5% median) | $1.7k |
| Net to developer (after Steam 30%) | $1.2k |

## Monthly review counts, oldest to newest (3 months)

106, 6, 2

## Missed seasonal-sale revenue (modeled)

Skipped 2 Steam seasonal sale window(s) in the last 3 months. Running a -50% discount in those windows is modeled at +$124 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

$28.4k to $56.7k (2-4x the trailing net annuity of $14.2k/year). Same error range applies.

## Markets by review language

- schinese: 99% (game NOT localized in this language)
- english: 1% (game NOT localized in this language)

Localization gap: 100% 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 (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/1849310
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.