Hello Josefus,
First - in terms of 3d gfx in your games.
I guess, as someone mentioned before, you need to learn more about rendering techniques. Everyone starts from the beginning but with time your skills should improve. For instance we, in LOP games, spend hours and hours working over optimal rendering settings - yes, we work with DAZ3d to. We use it for all our characters renders. This tool has huge potential if you use it right.
Someone mentioned Reality LUX renderer - yeap, it's great but not for games. It took ages to render single image (at least 10hours) so it's useless when you work with a game containing at least 50 renders. We use standard Delight render (DAZ3D 3.X) but from the beginning we use UberEnvironment (I guess it's standard light system for the DAZ3D 3.X, it can be bought for about 30$ for DAZ3D 2.0). We are using it for about 1 year now but we still didn't learn it in a way we would like to. If you want to work with Uber, you need rather fast PC - at least dual core with 2GB of RAM. Below that it will be a pain in the ass.
So my advice to you is to concentrate on your 3d kung-fu. For instance we, with every new game, test new rendering settings. It's a good way to learn the software and improve your skills.
And about 3d effects in game - I think it's a future and some pioneers are needed to start the revolution

Just look at this:
http://www.heraldsun.com.au/entertainme ... 6042065638We were also thinking about launching a 3d game for simple glasses but we decided to postpone this project cause it was to much time consuming (at least 2.5x standard time for renders and postproduction).
An issue here also is a matter of 3d glasses - not everyone has it but... if someone really would like to play a game with 3d effects, he can find some tutorials how to create such glasses with simple element that you can find in your home (for instance:
http://www.youtube.com/watch?v=sIEn9z0oBE8).
Regards