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!

TheUnbeholden says

8/10 - Agree (2) Disagree

This mod is really good in a few ways, the most obvious is the visual and audio design. Its so creepy and grimy that it really pulls you in from the get go. Hallucination/Nightmare based games are ones I've played a few of and this one here does the horror well, being based around abstract nightmarish world where you don't get to feel safe and fight creatures that could come out of anywhere. Theres a bit of space in between enemy encounters, this I quite like. Alot of horror games creators don't realize that scares are just as in important as building upto one. It's got something new for each level, so its always keeping you on your toes.

The point I think is to provide surreal like scenes and whatever happens is supposed to be symbol or representation of your characters repressed feelings and real life situations. Being able to get that kind information out of what happens is the key to making a good story, it can be a journey of self discovery... but if you don't see any of the real world you don't have the context to make sense of whats happening and thus you won't care about your character as much.
It falls into this pitfall, you are in the real world in the beginning (or so it seems) but you don't see any people, and it goes on like this till the end. Theres about 2 times where you do go back into the real world but it once again has no people beside yourself and only gives vague hints as to what happened.
You can break boxes although some boxes don't break which is a bit jarring for a hl2 mod. The games also relentlessly difficult (eventhough you fight a small number enemies) they have quite a bit of health (even guns aren't effective) and the amount of health you find is very very scarce. Even the hospital level only has 1 medkit cabinet yet you can find ammo for all the weapons *facepalm.
Its also not very long although its not necessarily short though, I would say maybe just over a hour for me.
Higher difficulty adds new enemies & different encounters