A game called GL-117, a 3D action flight simulation game. The graphics are average for the usual free games that are about. The source code is available and ready built versions of the game are available for Windows, Mac and Debian based Linux.

The game can be downloaded from here http://www.megaupload.com/?d=9T2Z8X5C

Or you can go to the official site here http://www.heptargon.de/gl-117/gl-117.html

I rate this game 4.5/10

Tools used:
Camtasia 7 which can be bought or trialed from here (legal but costs £220.00 incl. VAT) http://www.techsmith.com/camtasia.asp or downloaded from Demonoid, Piratebay and other such places (illegal in some countries)