Synopsis
Features 12 base adult CGs.
Event variations include: tentacle types triggered by defeat, 100+ collected tentacles in 3 types (1 type in demo), and 3 variations for playing with tentacles that join as party members.
Additional content includes boss defeat yuri events and illustrations of the protagonist and allies’ urination scenes.
Fully playable with touch, mouse, or single-handed keyboard controls (WASD movement). Character levels carry over from the demo to the full version.
The full version also allows use of past Kotoneneyakata character skins via password entry.
※Requires moderate processing power for stable performance. Please test the demo version before purchasing to confirm compatibility.





Editorial Review
How to Raise Tentacles occupies a niche corner of the action RPG space where mechanical progression meets distinctly fetishized gameplay loops. This is a creature-collection hybrid built explicitly around omorashi and tentacle content, filtered through an action framework—a combination that remains underexplored even in the permissive doujin market.
The work’s structural appeal lies in its commitment to integrated design rather than bolted-on content. The tentacle-collection mechanic (100+ variants across three types) functions as both party-building system and content delivery mechanism, with each creature type triggering specific defeat scenarios tied to the game’s central fetishes. The inclusion of 12 base CGs with event variations suggests developer awareness of replay value through content gating. More notably, the single-handed control scheme—WASD movement compatible with mouse or touch—indicates intentional UI design for a particular use case, which is refreshingly transparent design philosophy. The yuri boss-defeat events and dedicated urination illustrations signal confidence in the work’s thematic focus rather than treating these elements as bonus afterthoughts.
The demo-to-full progression system (level carryover, character skin imports via password) shows unusual attention to player convenience, though the processing power warning suggests technical ambition outpacing optimization—a common trade-off in doujin action games with asset-heavy collection mechanics.
This will resonate most strongly with players who prioritize omorashi and tentacle content as core gameplay driver rather than cosmetic layer, and who value mechanical depth alongside fetish material. Genre enthusiasts accustomed to the grinding rhythms of creature-collection games will find familiar dopamine loops here; others may find the content-per-hour ratio front-loaded toward novelty.
A specialized but coherently realized work that respects its core audience enough to design around their preferences rather than appease hypothetical mainstream interest.
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Related Tags:
bondage | tentacles | Demo Available | adult content | Action
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