Just look at the screenshots, an awesome looking Matrix Screensaver in OpenGL.
Yeah yeah, the site is in Ruski, but the tar.gz link and screenshots are evident. :)
Doesn't really seem to be a game though.
Isn't glmatrix already a part of xscreensaver?
This is for KDE [says the webpage]. I've got no clue whether you have this in kscreensaver, so I'm forwarding this on to the KDE people.
If someone wants to whip up and ebuild, I'll add it to the Gentoo KDE theme webpage.
Dead old bug left to close...