Have you already hear about new app - Planet of Cubes - infinite online block-building creative game? This game has big perspectives and capabilities!
Try first version of the game on your Kindle devices: http://www.amazon.com/Solverlabs-Planet-of-Cubes/dp/B00JIWCHMA/ref=sr_1_23?s=mobile-apps&ie=UTF8&qid=1396967996&sr=1-23
We are waiting for more updates, and of course for Survival Online Mode!