There is no other game quite like Devil Daggers. Created by Sorath and originally launched in 2016, Devil Daggers is a contest of skill and perseverance, its steadily increasing difficulty calling to mind Gears of War's horde mode, its bullet hell design offering an FPS game spin on shmups like Ikaruga or Battle Garegga, and its infernal visuals taking notes from Doom or Quake. It's a tremendous work, endlessly compelling and, best of all, available for just under $3 USD right now.