Multiplayer would be genious.
multiplayer is not planed for know apparently as it would take a LONG time to set up and the team working on it is not big enough to handle such a task well also doing small updates to keep us happy well we wait. idk but i think lan 2 player would be easier at a start and would set up the ground work for online but even that would take a lot.
Actually, there's a multiplayer mod for the game now. Browse the community, and you should see it rather quickly.