Half-Life Mods = Half-Life: Insecure Demo

RELIVE THE RESONANCE CASCADE AS ONE OF THE SECURITY GUARDS STILL TRAPPED IN BLACK MESA. YOUR ASSIGNMENT: NONE APPARENTLY. JUST TRY TO GET OUT OF IT ALIVE. EXPLORATION MIGHT BE USEFUL ON YOUR SURVIVAL. Mod download link: https://www.moddb.com/mods/half-life-insecure