I am working on something that, I hope, you'll enjoy.
But first allow me to introduce myself: I'm Greg, game developper, and having grown in the 80s I'm a long time Tron fan. In fact I've been shamelessly lurking here for a while. >_>
Tron is actually part of why I got into game development. And having worked on other people's games for a number of years I made the jump and did a game of my own. Weeee. It is a golf game, which (at first sight) is irrelevant to Flynn's favorite arcade, except that there are different environments in the game and one of them is an hommage to everyone's favorite 80s cyberspace.
I though it would be fun to replace an ID disc with a golf ball to roam the Grid, brave the recognizers and fight the MCP. (at least as much as a golf game can allow...).
This isn't meant to be 100% faithfull: it's an hommage not a copy. But hopefully it looks nice.
You can see a video & some screenshots here:
(look for some grid game action toward the end of the video)