At the moment, NASA is building a new Mars rover to launch sometime around 2020. The little robot successor to the Curiosity rover, who's still chilling on the red planet collecting rocks and looking for water, will cost about $1.5 billion to make. The Center for Strategic and International studies, a foreign policy think tank, estimates that an internationally backed moon base will cost about $35 billion to build and around $7.4 billion to maintain year-round. In short: Space is expensive, y'all. If we're going to get our plans for a Joystiq party house built on Titan by 2017, we'd better get cracking and think economically.

Keen Software House's Space Engineers is helping us cut costs by letting the Joystiq crew build all kinds of space ships and exoplanetary facilities in a safe, consequence free environment. Maybe we're going to build an 80-story party house on an asteroid! Who will stop us? Maybe you will, since we're giving away multiple copies of the game at 4PM EST on Twitch.tv/Joystiq.

Come hang with us as we stream Space Engineers alongside creator Marek Rosa at 4PM EST on the Joystiq Twitch channel and right here at Joystiq.com. Free games and wild space dreams; what more do you need?

Joystiq Streams broadcasts every Tuesday and Thursday at 4PM EST.

This article was originally published on Joystiq.