Bethesda pulled off the impossible and revitalized the game series that pushed the first person shooter into the stratosphere. There was a time when Doom was outselling Windows! The new game, called just Doom to mark a clean start, got stellar reviews, but if you're still unconvinced, you can give the first level a playthrough for free. It's available on Steam, PlayStation 4 and Xbox One, so you can try it on any platform. The offer will last only a week, so gather up your courage and don't delay. And if you already have the full game, you'll be pleased to hear that Bethesda has...
Source: http://www.gsmarena.com/e3_week_promo_play_the_first_level_of_doom_for_free-news-18789.php