SOW BOB : OpenGL or DirectX ?

[ebrain]

Does anyone knows FOR SURE what is the graphic API behind this game ? Sometimes I read OpenGL, sometimes I read DirectX, I dont' know what to think.

For me it's quite simple. If it's based on DirectX, I will never play that game, for beeing on Linux. If it's based on OpenGL, Wine should work quite good, as it's the case with IL-2. And trust me, I will NEVER install a shitty OS (to my point of view at least, I don't want to troll about that) just to play one game, this is really out of question.

Thank you for your answers .