'The Amazing Eternals' Combines 'Overwatch' And 'Hearthstone' Into A Free-To-Play First-Person Shooter With Cards Digital Extremes, the developer of 'Warframe,' unveiled 'The Amazing Eternals,' a free-to-play first-person shooter. The game combines the hero shooter genre popularized by 'Overwatch' with the digital card game genre popularized by 'Hearthstone,' by Aaron Mamiit