rucksack is described as 'Texture packer and resource bundler. Use the rucksack executable to build your resources file, and then depend on librucksack in-game to get the resources out at runtime. Alternately, roll your own resource-loading code using the file format detailed at the end of' and is a game development tool in the development category. There are six alternatives to rucksack for a variety of platforms, including Windows, Mac, Linux, Web-based and Android apps. The best rucksack alternative is ShoeBox, which is free. Other great apps like rucksack are TexturePacker, Alfred Spritesheet Unpacker, Sprite Sheet Animator and Sprite Monkey.