I gave my input on the Steam Forums, so I am just going to copy paste what i wrote before.
- Male and Female Character, with animations (Walk, Run, Attack, Die, Hit, Idle, Jump, Left and Right move, Backward Walk)
- Medieval, Futuristic Sci-Fi, or Modern props and locations
- Vegetation and Landscape, and a way to paint the vegetation (Unity3D style)
- Animals or Creatures with basic animations (Walk, Attack, Die, Idle)
Any or all of these would be infinitely useful.