Zero Gravity now has it's release date of 29th August and will currently only have Single-Player. It is expected that a basic Co-op system will be implemented for version 0.2 or later.
Version 0.2 should also contains Steam Achivements that should allow the game to have a better experience.
You will be able to purchase the game on the midnight launch;
29/08/2016 at 00:00 (GMT+1)
Please remember to submit bugs and issues you encounter to make this game become more polished and stable for later releases.
1 bug consists of;
Steam Overlay doesn't work properly in parts of the game.