Well, ICly it should probably contain more people than we gamewise see. For that matter I think the dome portion that we have access to lacks a bit in the way of food production. I suppose there would be enough meat though, being a game with respawning mobs and all and fish for that matter I suppose. Some of the plants are also edible as a salad or simply fruit. Hmm.. I suppose we just have a hunter gatherer diet then, mostly.