Hello LD! I’m finished my game! Here what I made in 48 hours, only with Gimp and the Blender Game Engine:

A tower defense game, with three units:

Gemini – give you more credits
Wall – protect the others
Cannon – shoot in the enemies

The goal is survive the wave of enemies for a determinate time.

The idea of the game was to have units that evolve, but time was short! xD

– Version 0.1 –

Windows:
http://www.mediafire.com/?srgfk4ioaea8vnv
Linux:
http://www.mediafire.com/?7rm5xzoss387p3o
Source:
http://www.mediafire.com/?prew1bc1vwloenx

Hope you enjoy! \o/