I just have a question can daz 3d studio 4 models be used in 3d gamestudio? Just wondering about the file format

thanks

I am pretty sure you can export them to a suitable format.

What you should be concerned about is polygon count of daz models, and usage rights of course.

DAZ Supplies a "Decimator" which works pretty well
Up to 20.000 tris the reduced model is virtually the same as the original one
With 5000 - 10000 tris it is still good

You can export Collada which is pretty standard. The Pro version can export FBX, a seperate FBX exporter will probably be available in the near future.