Stormrise is exclusive for DX10
Stormrise is also released for the XboX 360 which does not support DX10. The XboX is a console machine DX9. By the way, the reviews basically say this game is pretty much a POS.
Similar to Halo 2 in that Halo 2 was released exclusively for Windows Vista, but in reality it is only a DX9 game.