So, does anyone know how to run their game? I mean, the purpose of browndyedhotel puzzles is to eventually bring you to the Hotel, at which point you can read various things by clicking certain areas of the map, view a video displaying a physics engine to a game, post messages in a "chat room" of sorts, etc. The overall purpose is to distribute a mod to the Half Life 2 game called Ether, which uses the Source Engine, but combines the feel of the Half Life 2 FPS with puzzle-solving through the use of a stick that alters gravitational properties of objects found in your environment... you can cause object to hover in mid-air, to lose all gravity, or return to normal gravity. I guess somehow one has to use this interaction to progress through the environment. A demo of this environment interaction can be seen at the Elevator; just press Play and watch the video for a brief demonstration.
My question is, how does one run a Half Life 2 mod? I've heard of one called "gmod" before but I've never looked into it, and I have no idea what to do. It might be fun to have another first-person based puzzle game; I know I for one enjoyed the hell out of Portal, even though it was dreadfully short. Any suggestions?