A truly ambitious mod that I can respect for its influence on Half-Life's modding scene, but unfortunately it's too rough around the edges for me to recommend. Where it shines is the atmosphere, and it's pretty tense if not outright scary at points, but from a game design standpoint, it just flops. The game bathes you in pitch darkness at many points and gives you only Half-Life's terrible flashlight to work with, which leaves you stumbling in the dark frustrated instead of scared. Most of the enemies are largely fine but the Alien Grunt variant is mostly invisible except for their projectiles which makes them brutally unfun to encounter. Combine that with level design that essentially amounts to switch hunting and you have a mod that is not only fairly dull but actively frustrating