The difference between 2D and 3D games in Unity

With Unity you can create 2D and 3D content separately, use 2D and 3D elements in the same project, or make a 3D game simulate a 2D view in 2.5D.

2D vs 3D Game Development: Know the Major Differences

Learn game development w/ Unity Courses & tutorials in game

Zelter: Creating a 2D Looking Game in 3D in Unity

Converting 2D into 3D! (Unity Tutorial)

Unity Solutions for 2D

Using Unity to create pseudo-3D graphics? - Unity Forum

2D Vs 3D Games: Differences, Benefits and Costs Game Development

2D Vs. 3D Games - Which One is More Impactful To Develop?

Difference Between 2D and 3D Animation