First off, Allthough this is a mod, the game it mods, for which there is no thread, is included with the download, so it is in the right section. Also, I'm new here.
The Orange Block is a complete version of the builder's mod (TBM) for blockland (the original free beta), along with the death to block deathmatch mod. Both have been enhanced semi-extensively. The original free blockland beta, like it's successor, was a multiplayer sandbox game where you build with legos. The better mod adds over 300 bricks (I've actually counted) and tools for manipulating them and saving groups of them client-side. The Better Mod also allows players to create switches, which, similar to the current Blockland's switches, can move, fade, cloak, and mount weapons and particles to, bricks and people (Coincidentally, these were some of the first features of TBM, long before the retail release of Blockland). Death to Block, a mod for TBM, adds weapons and several minigames, including team deathmatch and capture the flag. All the weapons in this enhanced version (a total of 54 not including the ones mounted to vehicles) can be mounted to bricks along with TBM's particles and accessory objects. I'll add a video to show how some of these work later. In addition to these two main mods, there are several smaller community mods included in this package. There's the Cemetech AI 3, which adds bot support to deathmatches (including teams).There's the "Dirt Brick" mod, which, in addition to unlocking a few K'Nex pieces, adds a brick that you can "mine" with the pickaxe, which then respawns 60 seconds later. And there are all of Calc84maniac's mods, which in addition to making iGobs (groups of bricks selected with the iGob tool) scalable, enhance the switches and add "turret" switches, which shoot whatever weapon you've mounted at anyone within the preset range.
EDIT- heres some "media":