I don't own MgT yet but I am curious if all these Trade codes exist in it.
Ab
Data Repository
The world has a centralized collection point for information and
data. Governments, educational institutions, entertainment companies,
corporations, and other organizations for parsecs in every direction deposit records of their transactions and output in this collection point.
The TC use refers to AAB, the Imperial designation for data
repositories.
Ag
Agricultural
The world has the proper climate and conditions which promote extensive
farming and ranching. It is a producer of relatively inexpensive foodstuffs. It also is a source of unusual, exotic, or
strange delicacies.
An
Ancient Site
The world (or conceivably the star system) includes one or more locations
identified as the ruins of the long-dead race called the Ancients. Ancient Sites are exploited for the Artifact remains of this long dead technological civilization.
As
Asteroid Belt
The world is an asteroid belt which is the primary world or mainworld in the system. It is a producer of raw materials and semi-finished goods,
especially ores, metals, and minerals.
Ba
Barren World
The world has no population, government, or law level. It has never
been developed; it has no local infrastructure beyond the starport (if
that). A Barren world UWP has a zero Tech Level.
Cp
Subsector Capital
The world is the political center of a group of tens or dozens of star systems (typically a subsector).
Cs
Sector Capital
The world is the political center of a group of hundreds of star systems
(typically a sector).
Cx
Imperial Capital
The world is the overall political center of an interstellar government
controlling thousands of star systems.
Cy
Colony
The world is a colony of another world (or of an organization).
The inhabitants of this world are called Colonists.
Da
Dangerous
Some aspect of the world (conditions, customs, laws, life forms,
climate, economics, or other) is not well understood or easily understood by typical visitors, and it presents a danger. The world is an Amber Zone.
De
Desert World
The world has no open or standing water. This lack of water significantly
reduces the level of agricultural development.
Di
Die-Back
The world was once extensively settled and developed, but at some
time in the last thousand years its inhabiting sophonts died out leaving
behind the remnants of their civilization A Die-Back world UWP has a nonzero Tech Level.
Fa
Farming
The world has the proper climate and conditions which promote extensive
farming and ranching. In addition, it is not a Mainworld and is in the Habitable Zone. Farming is a rare substitute term for
Agricultural.
Fl
Fluid Oceans
The world's oceans are not composed of water. Non-water oceans
may be valuable sources of raw materials for industry.
Fo
Forbidden
Some aspect of the world (conditions, customs, laws, life forms,
climate, economics, or other) presents an active threat to the health and wellbeing of individuals. The world is a Red Zone.
Fr
Frozen
The world lies substantially beyond the Habitable Zone of the system
(HZ+2 or greater) and environmental temperatures are well below the
freezing point of many gases.
Ga
Garden World
The world is hospitable to most sophonts. Its size, atmosphere, and
hydrographic make it an extremely attractive world. A Garden World has a
safe environment which does not require protective equipment for
humans and sophonts which share the human environment.
He
Hellworld
The world is inhospitable to most sophonts. Its size, atmosphere, and
hydrographic make it an extremely unattractive world.
Hi
High Population
The world's population is one billion or more (Pop = 9 or A). High population worlds, because of the economy of scale for production, produce quality inexpensive trade goods.
Ic
Ice-Capped
The world’s water is locked in icecaps.
In
Industrial
The world has a strong manufacturing infrastructure and is a
producer of many types of goods.
Lk
Locked
The world is a satellite (in orbits Ay through Em) which is locked to the
planet it orbits. A Locked satellite does not have a Twilight Zone; its day length equals the time it takes to orbit its planet.
Lo
Low Population
The world has a non-zero-population less than 10,000. Low Population
fluctuates wildly and may change significantly on a yearly (or less) basis.
Locals are Transients: merchants, corporate employees, military, security,
or research personnel.
Mi
Mining
The world is the site of extensive mining and mineral resource
exploitation. It is not a Mainworld and is located in a star system with an
Industrial Mainworld.
Na
Non-Agricultural
The world is unable to produce enough food agriculturally to feed its
population; synthetic food production generally provides basic food needs.
Ni
Non-Industrial
The world has a non-zero population, but it is in the relatively low range of
more than 10,000 and less than one million. Non-Industrial population can
fluctuate, although not as wildly as on Low Population worlds. Generally the Non-Industrial trade classification remains constant and reflects the
expected level of population. The inhabitants of a Non-Industrial
world are Settlers: individuals who maintain a permanent settlement which
does not yet meet the criteria of Colony.
Oc
Ocean World
The world surface is covered with very deep seas. There is no (= less
than 1%) land above the ocean surface.
Pa
Pre-Agricultural
The world is a candidate for the Agricultural trade classification; its
population is just outside the requirement for Agricultural.
Pe
Penal Colony
The world is a dumping ground for individuals who do not (cannot / will not) conform to acceptable standards of behavior.
Ph
Pre-High
The world is a candidate for elevation to the High Population trade
classification; its population level is just below the requirements for High.
Pi
Pre-Industrial
The world is a candidate for the Industrial trade classification; its
population is just below the requirements for Industrial.
Po
Poor
The world has poor grade living conditions: a scarcity of water and a
relatively sparse atmosphere.
Pr
Pre-Rich
The world is a candidate for the Rich trade classification; its population is just outside the requirements for Rich.
Pu
Puzzle
Some aspect of the world (conditions, customs, laws, life forms,
climate, economics, or other) is not well understood or easily understood by typical visitors. The world is an Amber Zone.
Re
Reserve
The world has been set aside by the highest levels of government to
preserve some aspect of its indigenous life forms, to delay development of its resources, to frustrate investigation of some aspect of the world, or to prevent exploitation of the world by outside organizations.
Ri
Rich
The world has an untainted atmosphere which is comfortable and
attractive for most sophonts, and has a population suitable as a workforce.
Sa
Satellite
The world is the satellite of a planet (or gas giant) in the system.
Tr
Tropic
The world is relatively warmer than normal (although it is considered
habitable). Its orbit is at the inner (warmer) edge of the Habitable Zone.
The world has a Hot climate (at the upper limits of human temperature
endurance).
Tu
Tundra
The world is relatively colder than normal (although it is considered
habitable). Its orbit is at the outer (colder) edge of the Habitable Zone.
The world has a Cold climate (at the lower limits of human temperature
endurance).
Tw
Twilight Zone
The world is tidally locked with a Temperate band at the Twilight Zone,
plus a Hot region (hemisphere) facing the Primary and a Cold region
(hemisphere) away from the Primary.
Va
Vacuum World
The world has no atmosphere.
Wa
Water World
The world surface is covered with water; there is very little land ( = less
than 10%) above the water surface.
Terminology
Asteroid Belt. A series of small fragments orbiting a star and which is considered a mainworld.
Belt. An asteroid belt.or a planetoid belt.
Habitable Zone. The orbit (or orbits) around a star which allow produce local world temperatures and conditions conducive
to human (or similar sophont) habitation.
Mainworld. The principal or primary or most important world in a star system. The Mainworld may be a planet or a satellite
or an asteroid belt.
Planet. A world orbiting a star.
Planetoid Belt. A series of small fragments orbiting a star. A planetoid belt which is a mainworld is called an asteroid belt.
Satellite. A world orbiting a planet.
World. A planet or a satellite.
Dave Chase