I am feeling generous today and the game has been finished for a bit so I don't feel like people should wait any longer then they should. So to make it easier on those wanting to play, the release date has been pushed forward to 10pm EST today!
Estellium Legends releases in less then 5 hours.
Source: Steam Community (opens in a new tab)
Build and release context
Recorded Steam release date:
Within one calendar day of this post (UTC). The listed date does not establish an exact launch time.