Someone sabatoged it again.....
The demo version of Blockland is limited to exactly 150 bricks and offline gameplay. Players may also play on a Local Area Network (LAN) server with another person who has the full version, where the demo player is free of their brick limit. Demo builds that come with the game are under the demo brick limit and allow new players to explore some of Blockland's features. The demo version becomes the full version when a unique activation key is purchased from the Blockland website and entered into the game. And lolwut lolwut.