OldSkool Palette Sprites is a sprite shader system which allows your Unity project to easily replicate the palette swap effect used in retro video games. Palette Swapping allows you to re-color sprites without using the memory required for a whole extra sprite texture. This allows you to save space and easily re-use your graphical assets. Perfect for mobile development and retro games alike.

NOW WITH UNITY2D SPRITE SUPPORT!

This tool allows you to turn existing 64-color textures into "palettized" textures with the push of a button. It is extremely easy to use and displaying the textures and swapping palettes is a breeze.

By default OldSkool Palette Sprites uses a 64 color palette, although a different sized palette can be set up with minimal work.

This package includes a tool to generate palette maps and palettes from existing low color density sprites, the palette shaders, and a demo scene with an example material, palette map and palette.

YouTube link to video tutorial.
Link to Product and Support Forum Thread.

Thanks to Alisa Christopher for the Sprites used in the Product Graphics