After quite some people suggested this, I finally added CopperCube onto Steam Greenlight
. This is basically Valve's pipeline for testing if unknown games and apps are worth for publishing them onto their game selling platform 'Steam'. You can vote for the software you like, and in theory, if you get enough votes, maybe Valve considers your software for putting it onto Steam.
I think this might be a nice way for getting CopperCube more popular, and if this will be successful, I would be able to invest much more development resources into CopperCube. I'm a bit afraid if the audience on Steam is the right for CopperCube, I know that there are a lot of teenagers with harsh criticism on there, but let's see, maybe they like it. It is a great game development tool after all.
So if you have a steam account, please vote for CopperCube on there:
It would help CopperCube development quite a lot.