Alien Research Lab ( Questionable Ethics).The Security Complex ( 'We've Got Hostiles').The Portal Device ( Unforeseen Consequences).There are 21 maps, including the (partially finished) chapters named: Due to its unfinished state, maps can be only accessed via console by using the map command followed by the map file name (e.g. The game runs on a modified Quake engine, with several unfinished scripts such as the HUD.
There is, however, a very primitive weapon drop feature. This suggests that most weapons weren't even scripted by this time. Only three weapons are featured, and all of them have unlimited ammo (the Glock, the MP5, and the Crowbar). The disc was intended to be a preview for media outlets, and not to be released to the general public. dem files (replays) recorded by a Valve employee showcasing almost all of the available single-player levels, as well as 2 trailers, and some background on the technology used, among other things.
