Undertale 10th Anniversary Site Features New Sans Fight

Undertale's 10th anniversary, and to celebrate, there's a website featuring a whole new and comedic fight against the infamous San.

Toby Fox reveals new Undertale content we may never get to play, tells fans of the RPG that "the only limit to all this is your imagination"

U ndertale is officially over a decade old now, and Toby Fox celebrated the 10-year-old indie RPG's big day during a charity stream – a stream that highlighted an Underground with some unexpected new ...
GamesRadar+

Undertale's Toby Fox celebrates 10 years of the seminal RPG by letting you create your own pixelated avatar and record a memory, but it crashed almost immediately

RPGs Toby Fox reveals new Undertale content we may never get to play, tells fans of the RPG that "the only limit to all this is your imagination" RPGs Undertale's 10th anniversary stream included new ...
GamesRadar+

Undertale fans raised over $330,000 for charity at the RPG's 10th anniversary event, where someone paid $11,000 for a "one-of-a-kind" giant Toriel plush

RPGs Toby Fox reveals new Undertale content we may never get to play, tells fans of the RPG that "the only limit to all this is your imagination" RPGs Undertale's Toby Fox celebrates 10 years of the ...
The Observer

A tribute to ‘Undertale’

On Sept. 15, 2025, “Undertale” turned 10 to much fanfare from old and new fans alike.