Credits

Undertale

Undertale and its original characters, world, and related intellectual property belong to Toby Fox and their respective rights holders. This website is not official and is not affiliated with or endorsed by Toby Fox.

Original reference project

The public reference experience was created by Jaden. Visit the original Undertale soul test.

Attribution identifies the reference source; it does not grant permission to copy protected questions, result essays, code, logos, or exclusive artwork.

This implementation

The scoring engine, state machine, persistence layer, interface, share-card renderer, 66 scored questions, two final checks, result summaries, Shadows, Pairings, and special-result text in this project were independently implemented or written for this site.