This week's Epic Games Store free games include a nightmarish piece of PC gaming history, and a way to cleanse your brain afterwards

Dark, disturbing, and controversial, I Have No Mouth, And I Must Scream is one of those essential touchstones of PC gaming history. It's an experience to be recommended with caution - a refrain you could apply to many classic adventure games - but one that ardent point-and-click enthusiasts will want to see. If you've yet to tread Harlan Ellison's twisted dystopia, the Epic Games Store is giving you the chance to do so for free, and it's even throwing in the stylish, brash beat-em-up River City Girls 2 to clear your head afterwards.