The game has gone in many spurts and halts throughout the years, sometimes going a year or so with nothing, each time being a different build with slightly different -but generally the same- mechanics (Probably made from scratch each time considering the differences, but I'm not sure). Why they've only started working on this specific build earlier this year!
Some of the older builds had multiplayer with inventory to store food and even weapons for PvPvE, they're linked in the description of this page. You may have some fun with them, it's cool to see how the idea for the game has changed and evolved over time with different machines and maps.