Touhou Chireiden ~ Subterranean Animism.

上海アリス幻樂団 · 2020 · $14.99 · Action · deal grade B

Estimated net residual revenue: $956 to $1.4k per month
Opportunity: $2.5k per month at x2.10 dormancy
Estimated lifetime owners: 23.9k
97%% positive across 830 reviews · 14.8 reviews/month

Why it's flagged

Developer silent for 5.8 years
Studio quiet across its whole catalog
Last build shipped 5.8 years ago
Store page localized in only 1 language(s)
Last discounted 2 months ago, 1 sales in the last 12 months

Analyst notes (AI-assisted)

Touhou 11: Subterranean Animism is a vertically scrolling bullet-hell shooter from 2020 with anime aesthetics, challenging difficulty curves, and a Japanese-language narrative.

This title maintains steady residual revenue of $1,194/mo across a 23.9K unit installed base despite zero developer communication in 69 months and a single sale in the past year. The 97% positive score and consistent 15 reviews/month signal a durable, self-sustaining niche community. Acquisition makes limited sense given the solo-developer status and non-negotiable Japanese IP control, but a publishing partner seeking catalog depth in the hardcore shmup space or a platform looking to deepen bullet-hell offerings should monitor pricing elasticity and seasonal sales windows. Most realistic play: watch.

Risk: Developer (上海アリス幻樂団, Team Shanghai Alice) is a one-person operation with no recent communication; future updates or ports are unlikely without direct acquisition of the entire catalog.
Risk: Velocity shows volatile monthly sales (5–27 units) with no discernible seasonal pattern; opportunity upside of $2.5K/mo is modest and highly uncertain.
Risk: 69-month gap since build date suggests no engine maintenance, platform compatibility updates, or resolution/controller parity work; technical debt on newer OS versions unknown.

This case as Markdown · Estimates carry ±30-50%% error per title.