Using Quake as a MIDI Controller

"they found a way to send network data from Quake into the free software Pd, using Pd’s netsend object to send UDP packets containing control data from the game. In other words, instead of using a MIDI controller, you can make the game your control instrument. netsend is in Max/MSP, too, so this should work for Max, as well."

Yep. Title link takes you to the post on CDM with much more detail. I might have time to post like a nut but I rarely have time to go into full detail. I'll leave the professional writing to the likes of CDM, Music Thing and Retro Thing. : )