im using Ubuntu, and can open it under wine and it works, partially.the inside of the window is just black.i can open the help menu.so it seems that it dosen't work on ubuntu even when using wine.
after rebooting to windows i used it. Good work!!! but.... why can you make "blocks" under the menu?good work!
if gamemaker allows it, a VERY cool feature would be for the output to be a 3d file. If so you could make a building and export it to blender well just a suggestion.anyway, keep up the good work!