Red24 is a hardcore 2D platformer, developed in 24 hours in August 2013 by J.L. Soler (Design and Code) and Omar Madrona (Design and Art).
Go through this mysterious cave evading all kinds of dangers and defeat the evil final boss in the deepest part. A challenging quest for the most hardcore players.
Free game, yes, for real, download and play it. (also, we are not responsible if anything bad happens to your computer)
Download link: