Zombie Panic: Source mod is out

[Craig]

Finally the release of one of the more anticipated zombie mods. ZPS is now out and while I haven't played it yet, apparently it's pretty good (except for a flaw in the weapon damage which will apparently be fixed in a patch soon). http://www.zombiepanic.org/site/index.php

[MinionZombie]

Downloading it now, it's a beast. Hopefully I'll be able to play it, I've had nothing but problems trying to get HL2 to play offline, it just won't do it anymore, saying my info isn't on the computer anymore - when it was fine a while back. Is there a way to manually fix it, or do I have to drag my entire desktop all the way downstairs causing a ton of disruption and fuss just so I can hop online for a few minutes and then drag it all back upstairs again? Wait, is this a multiplayer thing only? If so, ghey...