excuse my ignorance, but what is Portal: First Slice? is it just another name for Portal, or an expansion pack or something?
Downloading. Will be awesome. Additionally, Just got CoH with my new 8800GT I just got back from the store with, so...
I was wrong. HL2 Deathmatch does grant you access to the SDK base:
http://www.fortress-forever.com/manual/
Yes, but free HL2DM like this doesn't.