If you're building a 2D game in Unity, the sprite sheet is the unit of work you'll touch most often. Get it right and animation is painless. Get it wrong and you'll spend an afternoon fighting pivot drift and blurry edges. This guide walks through the whole process — from choosing a grid size to slicing in the Sprite Editor — with the settings that actually matter.
What a sprite sheet is
A sprite sheet (or sprite strip) is a single image that holds many frames of animation or many related sprites, laid out on a regular grid. Instead of importing 12 separate files for a run cycle, you import one image and tell Unity how to cut it into 12 frames.
Sprite sheets matter for two reasons:
Performance. One texture means one draw call for the whole set, instead of one per frame.
