Undertale Yellow is one of the most ambitious and well-received fan-made games in the Undertale community. It tells the story of Clover, the sixth human to fall into the Underground, predating the events of the original game. With original music, unique characters, full voice-acting in key moments, and multiple choice-driven endings, it feels like a genuine expansion rather than a simple tribute.
The tone is distinct from the original Undertale while remaining faithful to its spirit. Humor, melancholy, and intense emotional beats are woven together naturally, and the resolution of each route carries real narrative weight.

Undertale Yellow is designed for multiple playthroughs. Each route reveals different character motivations, extra dialogue, and entirely separate climactic moments. Playing Pacifist first is the most narratively rewarding entry point, as it establishes the world and cast before harder routes recontextualize them.
The game also rewards talking to every NPC and exploring optional dialogue branches. Much of the characterization and world-building lives in conversations that can easily be missed on a fast run.
