Geography (Halo Setting)

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A Guide to Startravel and Planets[edit]

To go from planet to planet, one must cross an unfathomable amount of space. To do so would take hundreds of years going as fast as possible. To counteract this, all spacefaring species discovered Slipspace. By using their engines to effectively rip holes through reality, a ship can enter a pocket dimension. Doing so within the atmosphere is outlawed by the UNSC, and is akin to detonating dozens of nuclear warheads simultaneously. Any amount of movement in Slipspace is vastly multiplied in standard reality, allowing for interstellar travel at a leisurely pace. Only the largest ships are equipped with Slipspace drives. To travel to a planet, one must simply imput its Slipspace coordinate and activate their drive. They arrive at the planet quickly, taking only an hour to span the entire Milky Way. No important Slipspace coordinates are known outside of said galaxy.

The following are important planets one may wish to travel to:

Covenant Planets and Space Stations[edit]

High Charity

High Charity was a massive space station acting as the Covenant’s collective home world. It was a massive dome of rock from the san’shyuum home world. Below it sprouted parallel pillars capable of supporting life inside of. In the internal hub of High Charity lay an extremely large capital city with a population of just over 23,800,000 San'Shyuum citizens and 7.7 billion Covenant Menials, known as the Golden City. At the center sat the Forerunner Dreadnought, embedded within the city after the formation of the Covenant as a symbol of conviction and peace between the Sangheili and the San'Shyuum.

The city itself contained many locations sacred to the Covenant such as the High Council Chamber, the Sanctum of the Hierarchs and the Mausoleum of the Arbiter. Unlike many small Covenant vessels and their UNSC counterparts, High Charity contained many courtyards and other non-essential spaces which gave the station a terrestrial feel. The interior of High Charity was filled with the Covenant's unique architecture, of a lighter tone than their naval vessels. All of the structures within the city floated above a methane-rich field in which the millions of High Charity's Unggoy dwelled. The massive towers around the dome were gigantic spires of volcanic rock from the city's base, interwoven with metal supports and covered with decorative alloy. They were used by the San'Shyuum as offices and private residences. Further in the bedrock of the planetoid were subterranean warrens, which served as living quarters for the Sangheili and were nearly airtight and self-sufficient.


Sangheilios is the 5 continent home world of the Sangheili. It is incredibly varied, the only through-line being large, complex ruins.


Balahoo was dominated by unggoy prior to the Covenant’s discovery of it. Due to the industrial actions of its inhabitants before the first firing of the Halo array, it has a thick methane atmosphere containing various harmful gasses. It is primarily tundra, with temperatures ranging from -33 °C (-27.4 F) to 5 °C (41 °F). After the Unggoy rebelled against the Covenant, vast parts of its landscape was glasses, effectively reducing it to magma for years. This has long since cooled into a harsh, uninhabitable stone. After the majority of unggoy were taken onto High Charity, it was converted into one massive mine.

UNSC Planets and Space Stations[edit]


Forerunner and Promethean Planets and Space Stations[edit]

The Halo Rings
The Ark

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