Another Thursday means it's time for another changeover of free PC games on the Epic Games Store. This week, you'll be able to snap up free copies of Iratus: Lord of the Dead, Hood: Outlaws and Legends, and the crunchy retro sci-fi RPG Geneforge 1 - Mutagen. Next week, you'll want to get out the mop and bucket, because gory co-op game Killing Floor 2 will be going free July 7.