Undertale Yellow is a free fan prequel to Toby Fox's indie hit seven years in the making, and it's just released to massive fan acclaim.

Toby Fox's Undertale is intentionally vague with much of its narrative, which has allowed fans to come up with these fascinating theories.

Undertale, the quirky, pixelated adventure game, became a smash hit when it came out because of its unique mechanism: You can talk to its monsters and show them mercy, rather than killing them.

It's hard to believe that seminal indie RPG Undertale released almost 10 years ago, but alas, here we are. To celebrate the milestone that's making me feel like I'm about to crumble into dust ...

A group of performers played Megalovania, from Toby Fox’s game Undertale to the pope on Wednesday. A recording of the performance circulated widely on social media.

Here's how to beat Undyne the Undying in Undertale. This fearsome foe boasts bullets and spears that are tricky to dodge.

Undertale’s clever understanding of the RPG mindset and fantastic writing make it an unforgettable experience unique to games.