# Touhou Fuujinroku ~ Mountain of Faith.

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

- Steam appid: 1100140
- Developer: 上海アリス幻樂団
- Publisher: Mediascape Co., Ltd.
- Released: 2020 · Genre: Action · List price: $14.99
- Deal grade: A (A = dormant with >=$5k/mo opportunity, D = low signal)
- Est. net residual revenue: $2.3k to $3.5k per month (mid $2.9k)
- Opportunity score: $6.1k/month at x2.10 dormancy multiplier
- Est. lifetime owners: 47.7k · Est. lifetime net revenue: $153.8k
- Review sentiment: 98% positive across 1646 reviews (1591 from Steam purchases)
- Review velocity: 36.0 reviews/month (6-month average)

## Why it's flagged

- No developer announcement on record, ever
- Studio quiet across its whole catalog
- Last build shipped 6.4 years ago
- Store page localized in only 1 language(s)
- Last discounted 2 months ago, 1 sales in the last 12 months

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

| Stage | USD/month |
|---|---|
| Gross storefront sales | $5.3k |
| After VAT / sales tax (-13% blended) | $4.6k |
| After refunds (-9.5% median) | $4.1k |
| Net to developer (after Steam 30%) | $2.9k |

## Monthly review counts, oldest to newest (24 months)

29, 26, 30, 14, 27, 21, 22, 20, 24, 26, 20, 25, 57, 28, 30, 21, 19, 26, 26, 33, 21, 33, 61, 42

## Estimated acquisition range

$69.6k to $139.2k (2-4x the trailing net annuity of $34.8k/year). Same error range applies.

## Analyst notes (AI-assisted)

Touhou Fuujinroku ~ Mountain of Faith is a 2008 bullet-hell action game from the long-running Japanese doujin shmup franchise, ported to Steam in 2020.

This title sits at the quiet end of a cult franchise with remarkable retention: 98% positive reviews, $2,900/mo residual revenue, and stable monthly player engagement despite minimal marketing or updates. The opportunity lies not in growth but in understanding why a 76-month-old port of a 15-year-old doujin game still converts $47,730 lifetime units; that durability signals either strong IP moat or underexploited licensing potential. Best angle is publishing partnership with ZUN's circle (上海アリス幻樂団) to unlock official English localization and cross-promotion, rather than acquisition.

- Most realistic play: publishing
- Risk (other): Doujin-developed and community-patched (THCRAP dependency noted by players); official localization may require negotiation with both ZUN's circle and the fan-patch maintainers.
- Risk (market): Franchise appeal is extremely niche and non-mainstream; expansion beyond current fanbase is unlikely without major creative intervention.
- Risk (tech): Original game is 15+ years old; porting stability and modern platform support (especially post-Windows 10/11 updates) may require ongoing technical investment.

What players are asking for:
- Official English translation (players currently rely on THCRAP fan patch)
- Difficulty balance feedback, especially stage 6 and boss attack patterns
- Patch/maintenance clarity from publisher

Suggested first moves:
1. Contact ZUN (上海アリス幻樂団) directly to propose official English localization and co-marketing; this unblocks the primary player ask and differentiates the title from fan patches.
2. Audit the $2,900/mo revenue stream and 36 reviews/mo baseline to identify seasonality, regional spikes, and which markets are driving conversions; this will inform localization priority and bundling strategy.
3. Explore whether Mediascape Co., Ltd. (current publisher) retains ongoing rights and willingness to invest, or whether a more hands-on partner (publisher or circle) could unlock franchise synergy with other Touhou ports and merch.

Generated 2026-08-20 from public signals and player reviews. Directional, not diligence.

## 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/1100140
Citation: please cite ResidualPlay (https://residualplay.com) when using these estimates.