Grey’s life has been nothing but a struggle. A constant downward spiral, and it seems even reality has turned against him. Grey awakens to find that the world has gone quiet, the streets empty. You must find help. Explore the grim world Grey lives in a completely new and unique world, and find clues to his shattered past. Grey is a total conversion Half-Life 2 horror modification where the player must solve puzzles, fight to survive, and find out what is happening to the world around you. We have made a lot changes to the base Source engine and have added countless new mechanics in the mod such as the objective indicator, portable medkit, donator based extras, pickup animations, failed reloads, new picture based GUI elements and much, much more!

Blazedol says

8/10 - Agree Disagree

GOOD LORD.
And that's all I can say about this mod. I'm not joking, this mod is so ****** up in 3 different ways: Environment, Plot, and difficulty of the game. Now, the game isn't really bad, but... it's just messed up. The gameplay is like most single player source mods, you get 1 melee weapon, and some firearms. The programming is also very nice. The enemies seem... weird at first, but progressively get more and more disturbing. The setting... oh my god.
That's how I describe it. It's psychotic, it's disturbing, and it will leave you breathless. The plot is no different, but executed not as well. I found very little of it to be explained in the game itself, but just about all of it was explained at the end of the good ending. Speaking of which, you have to beat the game twice. Once on easy, another on hard, and I like that.
Overall, it's worth a playthrough, but that's about it. Not a whole lotta replayablity value, but it's still entertaining, and also memorable. Very, very memorable.