http://www.theorangeblock.org/The Orange Block is a Lego building game designed for people aged 8 - 18, but don't limit yourself!
It provides a multiplayer sandbox environment for people to get together and build.
It is a complex rendering system allowing you to have large amounts of interactions with your buildings.
It is the successor to the game TBM.
TBM was a free multiplayer game built off the alpha build of Eric Hartman's game, Blockland. It featured hundreds of different bricks for building, 98 different colors, IRC chat, and a variety of high-quality maps and models. It also had a deathmatch mod titled Death to Block (DTB) which expanded on The Better Mod's list of features and allowed you to battle your friends online.



So, just go there click on the Download ToB, and run it!
I will be Daswiruch on the main IRC channel, so just make a server/go to someone else's and have fun!