Doki-Doki Universe is made up of many small planets, each of which has a set number of goals which QT3 must complete and presents which QT3 must collect. There are 19 objective planets, plus QT3's Home planet.
| Name | Goals | Presents |
| Afri | 15 | 25 |
| Amazonia | 11 | 12 |
| Aminal | 6 | 21 |
| Aquariumland | 12 | 21 |
| Brrr | 11 | 31 |
| Buggabug | 4 | 15 |
| Bunnipi | 11 | 24 |
| Citay | 7 | 20 |
| Cosmo | ||
| Ert | ||
| Farroh | ||
| Gunite | ||
| Home | N/A | N/A |
| New Hawaii | ||
| Plurp | ||
| Robodachi | ||
| Sacare | ||
| Suteki | ||
| Tutorial World | 11 | 18 |
| Yuckers |
There will also be five DLC planets: Mecha, Monzer Ninjahh, Oldstone, Uga Ug, and Wizardalia.
