Godot Engine - Free and open source 2D and 3D

2d 32Uses two-dimensional sprites, 2D images created and used on a flat plane, as opposed to the three-dimensional models or environments found in 3D games.Lhtweht and easy to use so you can focus on animating and not what button to hit next. Seamlessly switch between raster and vector workflows, allowing you to sketch, ink & paint on the go. Pencil2D is cross-platform