Obelisk

Short Introduction:  Not “tower defense”, but “tower balance”: maintain the ratio of towers to creeps, of destruction to life, for as long as you can.
Platform/System: 

Windows, Mac OS X+

Credits: 
  • Zach Bouck
  • Payton Hediger
  • Daniel Leahey
  • Lindsay Moore
  • C.T. Ortman
  • John Ratcliffe
  • Andrew Sallwasser
  • Brett Sweeney
  • David Whatley

 http://globalgamejam.org/2012/obelisk