You point the pyramids at other pyramids to attack them. There is an online version of Icehouse called XIcehouse . It runs under X on Unix systems. Email Ron Hale-Evans if you're interested in playing some games online. There's a whole mystique around Icehouse, just as there is with Go, for example.
People make and paint their own regulation-sized pieces.
One of the authors of Icehouse even wrote a readable science fiction novel called The Empty City about it. I liked it. The Wunderland Toast Society subculture which the authors of Icehouse have helped build, and of which Icehouse is only a part, embodies the principles of the philosophy of Ludism admirably. The only unpleasant thing about Icehouse is that it's patented, and therefore not free. Page last updated 5 March 2000.