"Eastern Rainbow Dragon Cave") is the 18th game in the Touhou Project series of danmaku shoot 'em ups.

[6] The plot of the game involves magical cards that have appeared around Gensokyo, revealing the secrets of people and yokai.

[7][8] In late February 2021, Unconnected Marketeers was announced on ZUN's official website and Twitter page.

[10][11] The card system of Unconnected Marketeers was received positively, with reviewers claiming that the mechanic improved the game's replayability.

Utilizing the ability card system, both series veterans and beginners can enjoy the frenzied sidestepping and iconic, snarky characters that Touhou is known for.