| 1 | A Space Beyond Here | Laura Shigihara | 1:48 |
| 2 | Mr. Saitou (trailer music) | Laura Shigihara | 1:37 |
| 3 | These Grey Walls | Laura Shigihara | 2:21 |
| 4 | Old Soul, Young Heart (Brandon’s Theme) | Laura Shigihara | 3:12 |
| 5 | Who Stole the Crumble | Laura Shigihara | 0:58 |
| 6 | Saitou Corp (32‐Step Verification) | Laura Shigihara | 2:18 |
| 7 | Irritatou | Laura Shigihara feat. Toby Fox | 2:10 |
| 8 | Minimori | Laura Shigihara | 0:56 |
| 9 | Saitoumart (Mushroom Entrepreneurs) | Laura Shigihara | 2:22 |
| 10 | Doromizu Yo (Saitou Izakaya) | Laura Shigihara | 3:56 |
| 11 | Ancient Minimori Meeting Ground | Laura Shigihara | 1:52 |
| 12 | Brandon Snuck Out | Laura Shigihara | 1:39 |
| 13 | Minimori (Carrying Minimori) | Laura Shigihara | 0:56 |
| 14 | Tiny Planets (Under the Lonely Tree) | Laura Shigihara | 4:16 |
| 15 | Minimori (Carrying Megamori) | Laura Shigihara | 0:56 |
| 16 | Sphinx of Basic Math | Laura Shigihara | 3:14 |
| 17 | Kinoko Matsuri Club (Saitou Is Missing) | Laura Shigihara | 3:12 |
| 18 | Tea Party | Laura Shigihara feat. Insomniac_rap, Disciple_X & Kreyg | 3:14 |
| 19 | Tiny Planets (DJ Taxes remix) | Laura Shigihara feat. DJ Taxes | 1:10 |
| 20 | Flooded Gemstone Caverns | Laura Shigihara | 2:07 |
| 21 | Goodbye Mr. Saitou | Laura Shigihara | 4:09 |
| 22 | Old Soul, Young Heart (ending credits) | Laura Shigihara | 2:19 |