The first game that I launched was Need for Speed 2 SE, who supported 3dfx, and oh boy o boy, the difference was night and day, it blew my mind at the time. The textures, shadows, look and feel overall was the best thing that I ever seen. It also has exclusive features for 3dfx like bugs splatters on the screen in some parts.
A leap forward on gaming to my teenager eyes at the end of the 90s.