Creator Kit

Surviv.io has a kit just for developers. It contains all the images used in the game with the exception of gun shells and bullet lines and guns (when you are holding them). It contains a file with hex values for the skins/outfits.(Although there is a photoshop psd file for the base sprite. It also holds all loot, gun, obstacle, pickup, scope, emote and other items. (Although there are no building/shack images). The kit is here.