Press the dots to turn them from red to green. Press SPACE to generate your save code. It will take a second. This is essentially how inventory save codes will work for Expanse, with the exception of not being visible. Each one of the dots is a 0 or a 1. A combination of five dots results in a character. There are 31 possible characters in play. Look up how binary code works to understand this. Each of these dots represents an item. A red dot means you don't have that item, and a green means you do. In the way I plan to make the actual save codes will make 120 items only 12 digits in a save code.