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Oh my, it seems that even though many things have changed in their plans, they still managed to release a full version. The project now has a different name, and the old one seems to have closed, but here, the new race mentioned above is included, and it also seems to have better technical implementation. But I haven't checked it in the game yet.
Added 40 minutes later
and yes, now you can play with the new race on any map, it is selected among the regular ones, although there are only 4 heroes.