I forgot to mention the Linux and the Windows version are identical. However, as many seem not to get it working nowadays, I assume it's maybe better to end official support for Linux.
The Windows version works perfectly with Wine.
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it DOES work. OMGG!! I ran another download of cube metalheart on wine, https://sourceforge.net/projects/cubemetalheart/ That is the version I tried. It was utterly different and more like cube2. This is actually GOOD! (almost as good as mine) I take all those accusations back!