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GOG has Halloween Games on sale for up to 75% off.
Alan Wake $7.49
Alan Wake’s American Nightmare $2.49
Alone in the Dark 1+2+3 $2.09
Alone in the Dark: The New Nightmare $2.09
Amnesia: A Machine For Pigs $14
Amnesia: The Dark Descent $8
Clive Barker’s Undying $1.79
Gabriel Knight 2: The Beast Within $2.39
Gabriel Knight 3: Blood of the Sacred, Blood of the Damned $2.39
Gabriel Knight: Sins of the Fathers $2.39
I Have No Mouth And I Must Scream $3
Pathologic $2.49
Phantasmagoria $4
Phantasmagoria 2 2.39
Sanitarium $4
The Cat Lady $2.49
The Penumbra Collection $2.49
Waxworks $1.79