Unity - The multiplatform game creation tools for everyone.
Boring Avatars - JavaScript library to generates SVG avatars based on text.
Godot Engine - Feature-packed 2D and 3D open source game engine.
Avatar SDK - AI-powered 3D avatars from one photo
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Avataaars Generator - A simple avatar generator