On the subject of Steam and Launchers: I got the new launcher working under Steam but it took a bit of doing.
My launcher was at: C:\Program Files (x86)\Steam\steamapps\common\StarMade
My content folder was at C:\Program Files (x86)\Steam\steamapps\common\StarMade\StarMade
The launcher was downloaded from http://sm-launcher-test.s3.amazonaws.com/index.html?prefix=jobs/Launcher/58/
My launcher was at: C:\Program Files (x86)\Steam\steamapps\common\StarMade
My content folder was at C:\Program Files (x86)\Steam\steamapps\common\StarMade\StarMade
The launcher was downloaded from http://sm-launcher-test.s3.amazonaws.com/index.html?prefix=jobs/Launcher/58/
- I moved C:\Program Files (x86)\Steam\steamapps\common\StarMade\StarMade to C:\Users\Green\AppData\Roaming\StarMade
- I deleted the remaining contents of C:\Program Files (x86)\Steam\steamapps\common\StarMade
- I copied the contents of starmade-launcher-win32-x64 to C:\Program Files (x86)\Steam\steamapps\common\StarMade
- In C:\Program Files (x86)\Steam\steamapps\common\StarMade I renamed StarMade-Launcher.exe to StarMade-Starter.exe