Cthulhu Mythos TRPG Scenario “Kasane no Mori”

Editorial Review

★4.2 / 5 — henhenta editorial rating (our own assessment, not the DLsite official user score)

The TRPG scenario space has exploded with niche-audience appeal in recent years, but few entries bridge the gap between tabletop mechanics and streaming culture as directly as this Cthulhu Mythos adaptation. Rather than a traditional visual novel or standalone game, this is a structured roleplay framework designed for live-broadcast paranormal investigation content—positioning it squarely at the intersection of participatory horror and parasocial entertainment trends. It’s a scenario tool masquerading as interactive fiction.

What distinguishes this work is its explicit dual-layer design: the scenario functions both as a narrative framework for players and as engaging content for real-time audiences. The immersion mechanics lean heavily on the conceit of an active live broadcast, complete with spectator dynamics and chat-adjacent participation. The Cthulhu Mythos scaffolding provides familiar cosmic horror beats while the “Dokoka no Jukai” setting—Japan’s infamous suicide forest—grounds the terror in geographical specificity and real-world dread. The combination of occult investigation roleplay with streaming culture commentary is genuinely underexplored in the TRPG scenario market, where most works still default to dungeon-crawl or character-driven narrative structures.

The framing explicitly targets VTubers and active streamers rather than passive consumers, which narrows the appeal but deepens the value proposition for its intended audience. This is content for people who already create—not for spectators looking to consume a finished narrative experience.

Those seeking a traditional horror visual novel or completed TRPG campaign will find this less satisfying than genre standards. But for streamers, VTuber communities, and horror-content creators seeking a structured framework that capitalizes on live-broadcast spectacle and Lovecraftian dread simultaneously, this scenario fills a specific and largely uncontested niche with thoughtful attention to both mechanics and audience psychology.