Space Engineers!

 

 

The #1 Space Building game. Piece together ships and stations block by block. 

 

FEATURES

• Block building - but don't compare it to other block building type games. These blocks are highly detailed, and not even all that blocky most of the time.
• Space Ships - If it has an engine, a thruster, and a control panel then you can fly it around to your hearts content.
• Physics - Gravity generators keep the loose items firmly planted. Link a few gravity fields together and you build a rail cannon for whatever you have laying around
• Collisions - Blocks get crushed, crumpled, and even completely sheered off as newbs smash their plebeian ships into your glorious battlecruiser.
• Steam Workshop - Tons of built in mod support. From entirely new objects to simply just pre-built ships.
• Combat - PVP with space ships. Gatling guns and missile launchers to show that you don't like someone.

 

FREE TO PLAY WEEKEND

    This weekend the game is free to play, with a 40% discount if you want to buy.

 

In short - Play it now. Play it with me. Unless you hate America.

I completely thought this was something else.  Do you build your stuff individually or cooperatively?

Both. It supports single player, player hosted games, or server hosted games. You can even save and export worlds to any game that you're hosting.

Actually sounds like a pretty fun time.