Brown Dwarf(BD):

Brown Dwarf(BD): Exceptionally large gas giants, Brown Dwarfs are usually up to 10-30 times larger than Sol’s Jupiter. These gas giants are on the edge of being a planet as anything more massive would ignite into a star. Intense radiation and gravity bands circle this star, making it a most unfriendly environment, lethal to ships without DF. There is a chance that the three innermost moons are T-type planets(50%, 30%, 20% chance respectively). Brown Dwarfs have 5 moons and 1d10 additional moons(due to the BD’s massive size and gravity well). Brown Dwarfs are in 5% of all systems. No other planets can exist in a system with a Brown Dwarf(its’ massive gravity well throws smaller planets out of their orbits and into deep space), however a companion star does have its normal allotment of planets.

Max Population - 400

Waterworlds:

In this campaign all T10 worlds are automatically waterworlds, and if a T10 world is a player or NPR homeworld, then they are automatically an “Aquan Race”. Aquan races have the following abilities:

1. Their T10 worlds can have x3 as many PU (9600) as other races(they get to use all of a planets’ surface, not just the continental areas).
2. Aquan races get +1 to small craft combat(they are born and move in a natural 3D environment).
3. Max population size for none-Waterworlds is 1800 PTU.

Greenhouse Worlds:

The "active CO2 cycle" of a planet can sometimes allow the formation of a Greenhouse World, a O2 planet that is inhabitable. The first O2 planet of any system can possibly be a T-world with an active carbon dioxide cycle that enables life to flourish outside the normal Habitable Zone. There is a 5% chance for this to occur, first inner O2 world only.

Max Population - 400