All the reviews I've read have described it pretty much as 'Deus Ex set underwater, in the 60s'. Its an RPG with a strong emphasis on shooting things, rather than a corridor-shooter.


waiting couple days for the fullversion 

The Shader Model defines the feature set available to pixel/vertex/geometry shaders written for Direct3D. That includes restrictions/requirements on instruction count, floating point precision, that sort of thing.
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It's not for me then.