visit this link to see all of its features (note please view the webpage link below in overview) :
http://blockland.us/Features.html
this is teh blockland demo house:
The Demo House is a default build, that comes with Blockland. It features a simple house with a toggleable light, a Rocket Launcher, and a Jeep. It is built to work with the 150 brick limit of the Blockland demo. It is one of the oldest default saves, and showcases Blockland's ability to create particle affects, dynamic lighting, wrench events, and the ability to spawn weapons and vehicles. Just about the only features it doesn't show are print bricks and music bricks.