Choice of tools depends strongly on the theme and idea, but either:

C++ with SFML2  and Box2D, or the Unity engine are most likely.

• 3D Modelling: Blender
• 2D Graphics:  GNU GIMP
• Sound: Audacity

Anything else, I really hope I haven’t got to learn on the fly, but I’ll make it work some how.

Aiming for the Comp, but I’ll manage my time poorly no doubt — so there’s always the jam!