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"

Frisk waking up on a bed of yellow flowers during one of the best sad games, Undertale.

Undertale 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 areas and changes to the original 2015 game's world.

Alongside Fangamer, Toby Fox helped host the big 10th Anniversary Stream – as it's so aptly dubbed on YouTube – benefiting Doctors Without Borders. In it, there was plenty of content that caught viewers' eyes, especially longtime fans' own, as there were some… less than familiar moments captured. From a strange, moody area marked by ruins to a colorful version of Gaster's monochrome Mysterious Door, the stream's take on Undertale felt new.