Definitely, but isn't Crystal still in its early stages? I heard it doesn't even have Windows support yet for example.

Yes, you're right that it is in an early stage of development and doesn't yet support Windows (to be fair, even Rust added full Windows support fairly late in their development cycle to 1.0). Crystal is probably in a slightly earlier stage than Nim, though not by much. Both are very interesting languages that I think would plot in similar locations on the chart. D is also a lot of fun. I think all are competing in this same native compiled realm that seems to be popular right now.

Rust had "windows support" far before 1.0, though it was through minGW only for the first few years. MSVC support was added four days after 1.0 was released.