| Kenney | Sound effects and music | CC0 |
| OpenGameArt contributors | Sound effects and music | CC0 and CC BY 4.0 |
| Kevin MacLeod | Royalty-free music (optional pack) | CC BY 4.0 |
| Google Fonts | Typefaces | OFL 1.1 and Apache-2.0 |
| Microsoft Fluent Emoji | 3D emoji stickers (optional pack) | MIT |
| Twemoji | Emoji | CC BY 4.0 |
| OpenMoji | Emoji (optional pack) | CC BY-SA 4.0 |
| Tabler Icons | Interface icons | MIT |
| Carol M. Highsmith, Library of Congress | Landscape photos in the grade film, edited in Zornov | Public domain |
| NASA | Artemis launch, orbit and return footage in the films, edited in Zornov | Public domain |
| Wikimedia Commons contributors | City, dance and cycling footage in the films, edited in Zornov | CC0 |
| Emily Mesner, US National Park Service | The Denali photo on the home page | Public domain |
Zornov