I found the following information at:
http://paulsiu.wordpress.com/
"One bit of warning. While the 3dfx driver (tdfx) is supported, 3D support for it has been depreciated since Suse 10.1. There are no libglide3 RPM for 10.2. so you’ll be out of luck if you plan to play 3D games on 3dfx unless you want to compile your own libglide3 module."
It looks like you need to stick with SuSE 10.1 or upgrade to an Nvidia Video card that fully supports SuSE 10.2 and 3D graphics. The 3dfx card is very old and not likely to gain much future support.
Thank You,