I was about to try out this game but it looks like the devs can't/won't, after 4 moths in a pinned thread, answer a simple question about playing multiple accounts at the same time is allowed so I am going to pass.
From Mornington's post, allowing someone to pay for and play on multiple computers at the same time would give that play an advantage over others making this a pay to win game. I for one absolutely despise pay to win games and there is zero chance that I will try out this game unless this question is answered.