
LibreSprite lets you create 2D animations for videogames. From sprites, to pixel-art, retro style graphics, and whatever you like about the 8-bit (and 16-bit) era.
It offers the following features:
Should be a 5 - it's highly influenced by Aseprite (which is commercial tool highly regarded by professionals), and is incredibly feature rich and intuitive for creating pixel art. Why only 4 then? HORRIBLE performance/optimisation. For such a relatively simple program, it should not stutter, lag or leave screen artifacts between refreshes.