Russian devs can write programs but they really haven't got a clue about design and immersion...
But you have to know they're there to try. I mean, I noticed First Eagles purely by accident and only after that I found out about SFP1, WoV and WoE... No ads, no fancy boxes, no coverage in general gaming press (until recently TK's sims weren't even listed at MobyGames). Here in Russia if we have a dedicaded sim-shelf in PC game store there will be boxes of Il2, bunches of LockOn, probably some helo sim, MSFS, and then there will be a shelf with "the others" which will probably include a TK sim along with loads of arcades and dumb and ugly sim lookalikes.