Oldblivion is a  third party program (download) which allows graphics cards which are pre DirectX9 to run Elder Scrolls: Oblivion from Bethesda. This means that Oblivion can run on cards such as Geforce 3, Geforce 4, Radeon 9200 and so on. Obviously this is not supported by Bethesda Softworks so download and use at your own risk. The screenshots shown are taken using Oldblivion on a PC with a Geforce 3 standard edition graphics card, with a 1.5 GHz AMD Athlon processor and 512 MB of RAM, according to the Oldblivion site

Supported cards: Geforce 3 series, Geforce 4 series, Geforce FX 5200 series, Geforce PCX 5300, Geforce FX 5500, Geforce FX 5700 series, Radeon 9550, Radeon 9200 series, Radeon 9000 series, Radeon 8500 series, SiS 760 (working with some issues), Geforce FX 5100 GO (working with some issues).