Stan Stanislaus, the name in the game's MIT licence, publishes as Stan-Stani on GitHub and posted the game on Hacker News as EstanislaoStan. The developer describes themselves as an intermediate learner of Korean and a believer in comprehensible input; the README says the game's walk engine is shared with two other games by the developer.
A phone-first walk-around story game for intermediate learners of Korean, set at a fictional high school, where every word is tappable; the developer calls it vibecoded and had Claude write the story and definitions.