Godot Documentation
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Official manual for the Godot engine: scenes and nodes, GDScript, the 3D renderer, physics, animation, and export pipelines, plus a full class reference. Step-by-step getting-started projects take you from installation to a shipped build.
More resources on 3D Game Development
Polycount
Long-running forum where game and film artists post work-in-progress models for critique, discuss topology, baking, and shader workflows, and share studio hiring news. Reading the critique threads teaches the technical standards production art is judged against.
LearnOpenGL
Free online book and tutorial series on modern OpenGL in C++, from creating a window and writing shaders through textures, transformations, cameras, lighting, model loading and advanced techniques such as shadow mapping, deferred shading and PBR. Readers can build a working real-time renderer.
Unreal Engine Learn
Epic's official Unreal Engine documentation: Blueprints visual scripting, C++ gameplay framework, Nanite and Lumen rendering, materials, animation, and packaging. Reference material plus guided samples for building and shipping a 3D project in UE5.
Unity Learn
Unity's own tutorial platform, organised into guided pathways and project-based courses that build 2D, 3D, VR, and AR scenes step by step. Finishing a pathway leaves you able to script gameplay in C# inside the editor.
How to make a Video Game in Unity - BASICS (E01)
Opening episode of Brackeys' Unity series, walking through the editor interface, GameObjects and components, scenes, and the C# scripting basics. Sets up the foundation the later episodes build on when adding gameplay mechanics.
Unreal Engine Blueprint Game Developer
Master Unreal Engine Blueprint & create stunning 3D games! Learn game development from the GameDev.tv Team.