Freefall was an interesting project that was in development in 2002 by Ironworks Studios. It was set in the 22nd century, in a sky-city 18 miles above the earth’s surface. Gameplay begins by jumping off a building and free-falling to the ground, avoiding obstacles, people and the police along the way. Sadly the game was cancelled while only in a prototype stage. Freefall was the “twin project” of Gemini.
Thanks to Hey Hey for the contribution!