Documentation: Use these effect tools to create normal maps from sprite features such as transparency or color differences
SpriteIlluminator: Normal map painting for 2d games
SpriteIlluminator - Normal map editor for 2d dynamic lighting
Made 2D sprites looks like 3D using the new Unity 2D lights and Normal Map support - step by step video tutorial and guide about the 2D lighting system in comments.
2d material with a normal map - sprite shading if defold possible? - Questions - Defold game engine forum
2d dynamic lighting tutorial for Unity
SpriteIlluminator - Normal map editor for 2d dynamic lighting
Viktor Lidholt – Adding 2D Lighting to Your Game
Lighting up your sprites in Godot
GitHub - DenchiSoft/Live2DLighting: Experiments with Live2D models and lighting/post-processing.
How to create light effects in Phaser 3
Creating real time light effects for 2d sprites
Isometric Environment Lighting : Part II — Post Physical