So I have tried for example Dungeon Siege and Elder Scrolls III Morrowind and they won't run. So whats the point?
V3 is able to run Dungeon Siege without any problems in 1024x768 high detail(game is very CPU "hungry" though)try Amigasport driver, or 1.07 if you are 98, ME user, Morrowind: V3 cannot run this game.
Indeed Morrowind is a no-go for a Voodoo3 (or a Banshee) because the game runs only in D3D using the 32 bits rendering and unluckily the V3 supports only the 16 bits in D3D.