Undertale

Q.What is Undertale Yellow?

A.Undertale Yellow is a fan-made prequel to Toby Fox’s Undertale, developed by Team Undertale Yellow and released for Windows on December 9, 2023. It follows Clover, the human with the yellow (Justice) SOUL, and uses Undertale‑style combat and moral routes while adding new areas, characters, and mechanics.

Q.Who are the main characters in Undertale?

A.Undertale’s main cast centers on the player character (Frisk) and a core group of monsters: Toriel, Flowey, Sans, Papyrus, Undyne, Alphys, Mettaton, Asgore, and the Dreemurr children (Asriel/Chara). These characters drive the game’s story and change depending on whether you spare or fight them.

Q.Will there be an Undertale 10th-anniversary celebration?

A.Yes — Undertale received an official 10th‑anniversary celebration in September 2025, including a commemorative memories site, a two‑day charity livestream with Toby Fox and Fangamer, special events (like an orchestral concert), and charity auctions that raised hundreds of thousands of dollars.

Q.What are the different 'souls' in Undertale?

A.Undertale distinguishes human SOULs (upright, colored hearts) and monster SOULs (inverted white hearts). The game shows seven human SOUL colors—commonly linked to specific traits—and the player’s red SOUL is tied to the game’s SAVE/Determination mechanics but its exact “trait” is debated.

Q.When was Undertale originally released?

A.Undertale was originally released for Windows and OS X on September 15, 2015.

Q.Where can I find the official Undertale wiki?

A.The community-run Undertale Wiki now lives at https://undertale.wiki — it’s the primary, up-to-date wiki following a community move away from the older Fandom page (https://undertale.fandom.com).

Q.What kind of game is Undertale?

A.Undertale is an indie role-playing game (RPG) by Toby Fox, released on September 15, 2015, notable for its choice-driven narrative and a combat system that lets you spare enemies instead of killing them.

Q.Is there an Undertale text box generator?

A.Yes. There are several fan-made Undertale/Deltarune text box generators online that mimic the game’s dialogue bubbles.

Q.What's the meaning behind the red and yellow colors in Undertale?

A.Red is the default color of the human SOUL in Undertale and its exact canonical meaning isn’t defined in-game; yellow is canonically tied to Justice. The Ball Game in Snowdin reveals trait associations for the other colors, while red remains unnamed.

Q.How do you solve the piano puzzle in Undertale?

A.Solve the Waterfall piano puzzle by triggering Memory with an umbrella, then play Neutral-Up-Right-Neutral-Down-Neutral-Down-Right on the piano (a seven-note variant is also valid).

Q.Where can I buy official Undertale merchandise?

A.Fangamer is the primary official source for Undertale merchandise, with music and collector items available through iam8bit and Bandcamp. Look there for licensed apparel, figures, and the game’s soundtracks.

Q.Can I play Undertale for free?

A.No—the full Undertale isn’t free, but you can try a free official demo. The complete game is paid, typically around $9.99, though it has seen deep discounts at times.

Q.What font is used in Undertale?

A.Undertale’s main in-game text uses the font 8-bit Operator JVE; Sans and Papyrus use their own named typefaces for their dialogue (Comic Sans MS and Papyrus).

Q.What do the different colored hearts mean in Undertale?

A.In Undertale, colored hearts are SOUL Modes—the different states your soul can take in battle, tied to the Eight Humans. Each color changes how the soul behaves and maps to specific in-game traits.

Q.When is Undertale's anniversary?

A.Undertale’s anniversary is September 15, marking its 2015 release. The game’s 10th anniversary was celebrated on September 15, 2025, with official events (notably an Anniversary Stream) around September 21–22, 2025.