During last week's presentation by Bethesda Softworks at E3 2016, the company revealed one nice surprise that night for those looking to jump in to the studio's revival of DOOM in the form of a free single-player demo, with the demo now being available for a little bit longer.Bethesda Softworks announced on Twitter that the single-player demo of DOOM, which provided the game's first level for free on PC and consoles during the week of E3, has been extended "due to popular demand" for users to download.The specific amount of time that the demo's availability has been extended wasn't revealed, though if you're interested in checking out the beginning of Bethesda's DOOM you can download the demo here through either PlayStation Store, Xbox Games Store, or Steam while the offer is still available.DOOM is available now for PS4, Xbox One, and PC.