Kotarou Uchikoshi is a Japanese video game designer and scenario writer best known for his work on visual novels and adventure games that heavily emphasize puzzle-solving and narrative twists.

He spent five years at KID starting in 1999, where he established himself writing scenarios for the Memories Off series and the Infinity franchise—a run of interconnected visual novels including Never 7, Ever 17, Remember 11, and 12Riven. These games built his reputation for intricate, mind-bending storytelling.

In 2004, Uchikoshi moved to Chunsoft, where he found greater creative control. He wrote and directed Nine Hours, Nine Persons, Nine Doors for the Nintendo DS, a puzzle-adventure hybrid that became a cult classic for its nonlinear structure and branching paths. He followed this up with Zero Escape: Virtue's Last Reward, the sequel that landed on 3DS and PlayStation Vita, further cementing his status as a creator who blends philosophical themes with claustrophobic, high-stakes narratives.

Twitter (JP): @uchikoshi

Twitter (EN): @uchikoshi_eng