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An Undertale x Square Enix project kicked off, and it started with an album of remixes of music from the series called Undertale Chitei de Chill and will continue with merchandise. The album will be out worldwide and is due out on January 28, 2026 in Japan and in the US and Europe in February 2026. It will cost 3,850円/$39.99/€34.99. An official site is also live for the project. This follows the September 2025 10th anniversary streams.
The album will feature 20 songs from Undertale. Each one is going to be a Chill Arrangement version from that Square Enix line. A tracklist was released, so we do know what to expect, though there’s no official trailer hinting at how everything will sound yet.
Here’s what we’ll get to hear:
- “Once Upon a Time” – Music: Toby Fox / Arrangement: grooveman Spot
- “Fallen Down” – Music: Toby Fox / Arrangement: DJ Mitsu the Beats
- ”Another Medium” – Music: Toby Fox / Arrangement: grooveman Spot
- “Enemy Approaching” – Music: Toby Fox / Arrangement: DJ Mitsu the Beats
- “Nyeh Heh Heh!” – Music: Toby Fox / Arrangement: DJ JIN
- “Spear of Justice” – Music: Toby Fox / Arrangement: GORO KUMAI
- “It’s Showtime!” – Music: Toby Fox / Arrangement: G.RINA
- “It’s Raining Somewhere Else” – Music: Toby Fox / Arrangement: DJ HASEBE
- “Megalovania” – Music: Toby Fox / Arrangement: VaVa
- “Ruins” – Music: Toby Fox / Arrangement: MURO
- “Spider Dance” – Music: Toby Fox / Arrangement: GORO KUMAI
- “Uwa!! So Temperate♫” – Music: Toby Fox / Arrangement: doooo
- “Temmie Village” – Music: Toby Fox / Arrangement: MURO
- “HOME” – Music: Toby Fox / Arrangement: doooo
- “Asgore” – Music: Toby Fox / Arrangement: DJ Mitsu the Beats
- “Snowdin Town” – Music: Toby Fox / Arrangement: VaVa
- “Oh! One True Love” – Music: Toby Fox / Arrangement: DJ HASEBE
- “Alphys” – Music: Toby Fox / Arrangement: G.RINA
- “His Theme” – Music: Toby Fox / Arrangement: DJ JIN
- “Hopes and Dreams” – Music: Toby Fox / Arrangement: tofubeats
In terms of other Undertale x Square Enix merchandise, another music album is confirmed, Lit Bāff Apt clothing is hinted at, and there seem to be teasers on the site for four other kinds of items. The second CD will be an Undertale x Yoko Shimomura piano arrangement album of additional remixes of songs from the game.
The Undertale Chitei de Chill album will be out in Japan on January 28, 2026 and worldwide in February 2026, and Square Enix will also eventually release merchandise based on the series. The game is on the Switch, PS4, Vita, Xbox One, and PC.
