Still thinking about my game idea, but I;m pretty sure I will use:

1. Unity 4

I might use the UFPS library (from http://www.visionpunk.com/ ) for player movement – but I’m not sure yet.

2. Photoshop CS4

3. Blender

5. Maybe some generators for sound and textures…

6. NeoTexture generator for procedural textures: http://neotextureedit.sourceforge.net/

7. Drone FX for generating music

Good luck everybody!