branolia You need to decide, which look you want to have. 1st person-3d is not an option in c2 (no 3d engine), platformer is not really best for this genre, so you end up with top down or Isometric view (like diablo, ultima, starcraft, wow,....) is possible even multiplayer.
Take a look, this might be an option for you:
I just this this for another Post here:
Not finished yet, so check back there from time to time, to see improvement, if you like.
(You can use it to start with as you please.)