We released the Final Version
From now on we will regulary meet on the servers.
Look to your right at the sidebar to see the next date, or go to:
Till november we'll meet on Monday and Friday -> 9pm UTC+1
After November every Monday, 9pm UTC+1
Apart from that, you can of course play the game any time you want, the Servers are up constantly. ;)
And join the Frontiers Steam Group!