CuteGod
CuteGod is an implementation of a prototyping challenge from Lost Garden (http://lostgarden.com/2007/05/cutegod-prototyping-challenge.html).
The implementation here does allow you to play around with manipulating bits and pieces of the ground, and even generate houses by assembling certain patterns, but the compulsion to keep playing for any length of time is missing. There are many details the still need to be added to the game, so something delightful may yet emerge.
You can download the prototype here: downloads/CuteGod-Prototype-1_R1.zip