The Overworld of the Unterganger Minecraft Server is where most of the action happens. This page intends to describe the world generally, separating details pertaining the world from the server page.


See also: World border

The world border has been set at 12,500 blocks from origin. The playable area is thus 25,000 by 25,000 blocks in area.


The server world generated in two phases - pre-1.7 and post-1.7. This has caused breakage in terrain generation between the center of the world around spawn (generated pre-1.7) and outside of it (post-1.7). The boundary between these two is referred to as the chunk border, and has become a place to build pixel arts.

The pre-1.7 terrain (henceforth called the old world) contained the old collection of biomes. It is important to note that since 1.7 changes were made to Minecraft causing snow to no longer fall on the old Taiga biomes, requiring snow be replaced manually. The old world constitutes nearly 1% of the playable world.

The post-1.7 terrain (henceforth the new world) generates the new list of biomes introduced in 1.7. The total area on the new world constitutes more than 99% of the playable world, though only a fraction of it has been explored.


The spawn is currently set on top of DA's Castle.

Generated structures

The UMS has structure generation turned on. NPC villages, temples and monuments spawn throughout the world. In the older days these has been made the priority for exploration by players MTM and Molster but has greatly lessened since the departure of the two.

While some structures generate in abundance, some were very rare (e.g. only 2 Woodland Mansions were ever found, and one had since fallen outside the world border) and commands preservation.

Addressing the world

  • Division of the area within the world border into 9 sectors
  • Subdivisions of Sector 5.

A proposed addressing system has been pushed forward by kimilil in order to make addressing a region of the world more intuitive. Note that due to misunderstandings, the addressing system only covers the coordinates ±12000 blocks from origin.

The world is equally divided into Sectors 1 to 9, each 8000 blocks wide on each side. Each sector is further subdivided further equally into subsectors 1 to 9, 2666 blocks wide on each side. An exception is Sector 5 which is subdivided along the chunk border.

The subsectors are then divided into 9 regions a to i, with the exception of Subsector 5-5 (the former Inner Regions) which keep their old region subdivision (thus denoted by cardinal abbreviations NW, SE etc. plus C for Central Region).

Thus, any place can be narrowed down to a region nominally 888 blocks squared, enough to contain a whole city, and localized enough to not send a player hopelessly lost on his way.

Writing the address starts from the Sectors down to the regions. An example address 5-4i thus means Sector 5, Subsector 4, Region i.

Player builds

When a player builds on the world, the build is classified differently depending on its size or nature.

A single building is commonly referred as a building. It could also be a player residence or a contraption, all depends on its nature.

More typically, players build habitations. This can be categorized as either a town or a city depending on size. A distinct difference between the two is that cities tend to contain separate districts, which can themselves be classified towns, as is the case with Unterganger City.

The third major build types are infrastructures. This usually consist of roads, rails and airports which span a long distance or a large area and serves multiple localalities.

Player builds are usually considered to be owned by respective players who build them, and/or other players that they designate. This has actual power to determine cases of ownership or griefing. However, infrastructure builds are usually more complicated due to their scale, and should be judged by operators on a case-to-case basis.

Naming of geographic features


By convention, some of the seas have been named thus: