Half Life 2
Half-Life 2 Minerva Mod - Metastasis 1
Installation: * To install, unzip into your 'Steam/SteamApps/SourceMods/' folder. MINERVA: Metastasis should appear automatically in Steam's 'Play games' window. Double-click to start.
Minerva is an ongoing, episodic series of single-player Half-Life 2 maps. This is the first release.