The dwarves are always building more support beams, mine carts, and watch towers. Dwarves can build from just about anything, but their latest shipment of heavy stone building blocks from the goblin factory are particularly hard to work with. That's goblin craftsmanship for you. At least these pieces arent covered with little bits of exploded goblin like the last shipment.

Your oddly-shaped building blocks will drop from the top of your construction site. You can move your building blocks left and right and rotate them as they drop using your arrow keys, and the Z and X keys. The goal is to place your pieces together so that a solid horizontal line is created. When you complete a line like this, it slides off to be used by the dwarves in various constuction projects. Earn bonus points by creating lines that are two, three, or four lines thick. Look at your next building block and plan ahead. Creating a section four rows high will generate the largest possible bonus.

You will have three minutes on the clock. If new building blocks no longer fit at the top of your construction site your game will end, and the dwarven wrecking crew will have to come out and clear away the oddly build monstrosity you left behind.

When you clear many rows at once in two player mode you get the opportunity to sabotage your opponent's progress. If you manage to put together 3 or more lines at the same time, you will send debris to your opponent. Watch out, he can do the same to you!

It's important to note that your opponents display is shown a few seconds behind to allow for network lag, and to prevent cheating.