Creating this as a new topic so people who don’t follow the Space Engineers thread will see it.
There is a price increase imminent, so if the game has interested you, now might be the time to grab it.
It is currently $14.99 http://store.steampowered.com/app/244850/
I should add that the devs announced on Facebook that a price increase would happen in a few days time. No specific time frame was given.