Aberration is a Singleplayer Action/Horror mod for Half-Life 2. You play as a Resistance member who finds himself in a mysterious place with no idea how he got there. Play the mod to find out more.

Azatoth027 says

This review may contain spoilers

4/10 - Agree (8) Disagree (3)

If you are looking for an original experience just pass on, this mod has no personality of its own.

This is basically a vanilla HL2 single player mod with a few scary elements here and there (pretty scarce though). What's even more disappointing is, as stated in other reviews, these mechanics are ripped from Nightmare House 2: the shadow people, the flashlight and even the scripted random scare entity have been ripped from their original mod. Icing on the cake: as of this writing (initial release), none of the guys behind NH2 have been credited.
Also, there's no story telling throughout the mod. This is particularly irritating when you end up in HL2 episode 2's caves without any reason explained when you are supposed to **** bricks in a horror mod.
What really saves it all is definitely its map design which has been polished.
Too bad, the horror theme has not been developped enough and we end up with a bland HL2 mod with elements stolen from NH2 and half-assed due to the poor copying.