IIRC I've played I,II, and part of III.... but it didn't look like the dinosaurs were gonna show up in III and I kinda lost interest in the storyline etc. Actually - I was also dissapointed that they hadn't updated the graphics engine. There was still a tendency for some items to penetrate others (poor collision detection) and I got the impression of no OpenGL or DirectX support. Which for a 3D game back when TR III came out was unforgivable...