Forget about straight ports of Opengl games like armagetron.

NeoStrider has been working on a tron game and 3d engine for it for a long time. They are called 'bzk' and 'angstron'.

It's poking along at 2-3 fps right now though, and the camera view makes it hard to play. In my opinion, he should rearrange some priorities to produce a playable Tron game in 2008. Implement pixel doubling. Discard texture mapping. Could easily get up to 12+ fps that way. Then he could work on camera movement and gameplay and have a decently little Tron clone.

There are a number of 2D tron clones that would work though.