Forgotten Sky is an awesome retro themed platformer from Cornell University. Because it's retro themed, the graphics aren't amazing but the gameplay is excellent. You have a rope gun that you can use to grapple objects and swing across gaps. There are lots of traps including saw blades, gun turrets, and more. The controls are all explained by an ingame tutorial. This game also has lots of easter eggs. Several of the levels have a hidden companion cube (from Portal). So download it unless you want to miss out on an awesome platformer. :)
Forgotten Sky takes place in a futuristic era where mankind has descended underground to survive. The game follows the journey of Caelum, the main character, as he treks upwards to see the surface of the Earth for the first time. Equipped with a rope gun and a trusty katana-hoe, it will take skill and timing for Caelum to piece together the story of his missing brother and succeed in his quest to see... the Forgotten Sky.
Download (14 MB):