Slay the Spire Board Game Expansion Crowdfunding Surpasses 100 Million Yen in 8 Days

Kenbill Co., Ltd. (Kurume, Fukuoka; CEO: Masayuki Maruta) announced on May 23, 2026, that the crowdfunding campaign for the "Slay the Spire - Downfall Board Game Japanese Version" on CAMPFIRE has reached 100 million yen. This milestone was achieved just eight days after the campaign's launch on May 15. As of May 28, the total exceeded 106.8 million yen, marking the second-highest funding amount for any board game crowdfunding project led by a Japanese entity.

This project aims to publish the Japanese version of "Downfall," an expansion for "Slay the Spire: The Board Game," which has already recorded domestic series sales of over 200 million yen. The expansion adapts the popular digital mod, allowing players to control boss characters like the Slime Boss and Guardian to defend the Spire. Conversely, original player characters now appear as bosses.

Funds will be allocated toward royalties, manufacturing, translation, and logistics to ensure the title's accessibility in the Japanese market. Six backing plans are available, including tiers featuring the previously sold-out Collector's Edition of the base set.