Dwarf Fortress, an intimidating old-school city-building game, is famous for its vast scope and difficulty. Technically a roguelike, it allows players to construct elaborate underground civilizations — and even the entire world they are set in — then crushes them with goblin invasions, lava flows and micromanagement. Players often show off their labyrinthine creations using 3D visualization apps, but Jong89's creation is especially worthy of your attention: his dwarf fortress is a vast turing machine.
The Dwarven Computer is finally complete! I've tested it and it functions as expected, though its performance is really lousy. … Yellow gears represent gears that are disengaged by default. Grey gears are not linked to any pressure plates. Blue gears are engages by default. Unfortunately I didn't have enough cobaltite to make all the blue gears on the upper deck so I used orthoclase instead.
This monumental build contains 672 pumps, 2000 logs, 8500 mechanisms and thousands of other assort bits and knobs like doors and rock blocks.
I believe this is the first programmable digital computer that anyone has built in DF. I believe it is turing complete, for anyone who cares.
When examining the map, be sure to note it has multiple levels–and that the computer intersects with an underground river!
Razorlength [Dwarf Fortress Map Archive] Thanks, Joel!