コイカツ！ / Koikatsu Party

ILLUSION · 2019 · $59.99 · Simulation · deal grade A

Measured on 2026-10-02 16:24 UTC, 3 days ago. The whole catalog is re-measured daily; a game that just launched can move fast between passes.

• Estimated net residual revenue: $2.7k to $4.1k per month
• Opportunity: $7.2k per month at x2.10 dormancy
• Estimated lifetime owners: 212.0k
• 91% positive across 5722 reviews · 10.6 reviews/month

Why it's flagged

• Developer silent for 3.2 years
• Studio inactive: no public activity across 3 tracked titles
• Store page localized in only 3 language(s)
• No Steam discount in 3.6 years (deepest tracked: -20%)

Analyst notes (AI-assisted)

Note written 2026-08-25; the live figures above take precedence over any numbers in it.

A 2019 Japanese dating-sim visual novel centered on an exceptionally deep 3D character creation system.

Koikatsu Party maintains solid residuals and a devoted core audience despite zero discounting in 41 months and developer radio silence for three years, suggesting the IP has structural durability. The title is held back by thin vanilla content (players rely heavily on mods) and a high price-point that triggers refunds among fence-sitters. For a publisher or platform holder with adult-content tolerance and mod-ecosystem experience, the real opportunity lies in licensing the character-creation engine or acquiring catalog rights to expand the IP with officially-supported content modes; a straight acquisition of the game alone offers modest but stable margin. Most realistic play: publishing.

• Risk: Adult-content positioning (heavy mod dependence on uncensoring and POV) creates platform and payment-processor friction; mainstream distribution and marketing severely constrained.
• Risk: Developer (ILLUSION) is unresponsive; studio status is reported as inactive, raising questions about code quality, engine support, and long-term maintainability.
• Risk: Content poverty in base game drives refund churn among non-modding players; expanding playtime depth would require significant post-launch investment.

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