I'm Thristhart, and I'm new to the source engine, and am learning the ropes. I've done some mapping for TF2, CS 1.6, and GMod. I'm a co-admin of Steel Walrus, a programming and gaming community.
I'm working on Humanity, a multiplayer zombie survival mod for Half Life 2 in which instead of the boring defense of a base prebuilt for you, you build your own base.
From the ground up.
I'm also working on a top-down grid based stealth game, in which one Hider must out-think and out-maneuver a group of better-armed but slower Search Team members. That's kind of off topic as it runs on Ramaze and not on the Source engine.