[H] Gems [W] Kingdom Rush, Revenge of the Titans, Creeper World 3, Defense Grid: The Awakening

These are the games I want and the prices I want to pay, but they are all negotiable :D
SEA locked games are acceptable.

Kingdom Rush: 800 gems
Revenge of the Titans: 400 gems
Creeper World 3: Arc Eternal: 600 gems
Defense Grid: The Awakening: 600 gems