Videvo - Free HD stock footage & motion graphics for any project!
Unity - The multiplatform game creation tools for everyone.
Coverr - Beautiful free stock videos for any use
Godot Engine - Feature-packed 2D and 3D open source game engine.
Mixkit - High-quality stock videos that are completely free.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.