Unless you've been hiding under a rock, you must have heard of arguably the best game on the Xbox360 -- Geometry Wars!
Available as a $5 download from Live!, it's fast, frenetic and hugely addictive.
And now it's been cloned for the PC. It's free and a tiny 2.5MB download -- if you're on DSL/Cable, start now and by the time you finish reading this post, it'll be done downloading!
On the same page there's also a bunch of recreations of classics which, like Grid Wars, are written in Blitz Basic. There's Marble Insanity, a tribute to the venerable Marble Madness, DeBlitzer, a Defender-a-like, Blitzatron, a decent simulacra of another Williams' classic, Robotron 2084, and number of others, all for free! Head on over to check it out.
Blitz Basic, of course, started life on the Amiga, a home computer close to many a new-linker's heart.
Are we still alive? Hard to say. We're certainly still twitching ;)