- "addons/gd-plug/*" by Tan Jian Ping licensed under MIT
- "addons/debug_menu/*" by Hugo Locurcio and contributors licensed under MIT
- "addons/controller_icons/*" by Ricardo Subtil licensed under MIT
- "addons/destruction/*" by Jummit and contributors licensed under MIT
- "addons/post_processing/*" by Korin licensed under MIT
- "addons/proton_scatter/*" by HungryProton licensed under MIT
- "addons/beehave/*" by bitbrain licensed under MIT
- "assets/models/graveyard/*" by Kenney licensed under CC0-1.0
- "assets/models/smashed_characters/*" by Kenney licensed under CC0-1.0
- "assets/textures/icons/*" by Icons8 licensed under LicenseRef-linksware
- "assets/textures/bars/*" by Kenney licensed under CC0-1.0
- "assets/fonts/bad.ttf" by Santiago Merino licensed under CC0-1.0
- "assets/sounds/boss_theme.ogg" by Tausdei licensed under CC-BY-3.0
- "assets/sounds/sfx/rock_breaking.ogg" by Blender Foundation licensed under CC-BY-3.0
- "assets/sounds/sfx/cannon/*.ogg" by rubberduck licensed under CC0-1.0
- "assets/sounds/sfx/hit/*.ogg" by TinyWorlds licensed under CC0-1.0
- "shaders/highlight.gdshader" by OzMaister licensed under MIT
- "shaders/blink.gdshader" by Gherghetta licensed under CC0-1.0
- "shaders/sky.gdshader" by afk licensed under CC0-1.0