
Both Scott and I have written about Minecraft before, but for those still unaware, it is a game currently in alpha that randomly generates a world made out of cubes which can be disassembled and put back together again to create a variety of objects. One person can make a comfortably log cabin or, as in the LotR example, a large number of people on a single server can build entire villages together.

Hobbiton is pleasant and Bree, a relatively small village just East of the Shire, is almost complete. The central road leads through town, passing by the Prancing Pony (a necessary reference to the lore) and a few notable landmarks. Players are also welcome to build a home and farmstead in and around Bree, so long as the one plot of land they build upon does not contradict Tolkien canon or tarnish existing buildings. Those of whom are finished with Bree can contribute to the long road to across Middle-earth, with notable stops along the way to build Rivendell, Moria and, one day a long way off, Mordor itself.
What these players are doing is far more impressive than the recreation of a single-object, like the Starship Enterprise. They are also not creating Middle-earth from a map editor, choosing to recreate the world themselves. They are building history - a fictional history, but an incredibly rich world nonetheless. It is a dual history. When Isengard is finally built, it will be meaningful to those familiar with the fortress and its lore. But it will also be meaningful to those who built it - not the Númenóreans but the individual minecrafters who raised its walls.

The Road goes ever on and on
Down from the door where it began.
Now far ahead the Road has gone,
And I must follow, if I can,
Pursuing it with eager feet,
Until it joins some larger way
Where many paths and errands meet.
And whither then? I cannot say.
- J.R.R. Tolkien