Episode One follows scientist Gordon Freeman and his companion Alyx Vance as they fight in humanity's continuing struggle against the transhuman race known as the Combine. When the story begins, Gordon wakes up outside the enemy's base of operations, the Citadel, after being left unconscious from the concluding events of Half-Life 2. During the course of the game, Gordon travels with Alyx as they attempt to evacuate the city.
To play this SDK Version of Nightfall, you will need a copy of Half-Life 2: Episode one installed This is not a final version, nor is intended to indicate final game play - this is a SDK Only.
Boobies :D
Related: Moddb.com
OK, what's the secret? With App 215/211, the MENU does not appear, so that I had to manually choose the first map. the Gameinfo that came with the mod, the scene shows red ERRORS. With App 220/new, the errors are gone, but I have no clue where the HEV suit is, nor a crowbar to smash the boarded-up doors. WTF?