Planets

Official DOOM stories have mostly shown Earth and Mars. Mercury Rising patches the map: the same corporation is already busy across the system by 2141, and Hell sits as a gateway between those points.

Earth

Headquarters — in theory

Mercury

2141 campaign heart

Venus

Cloud cities

Mars

Many bases, one planet

Hell

Nexus / gateway

Ceres & the Belt

Asteroid footholds

Jovian moons

Ganymede, Callisto, Europa, Io

Saturn’s moons

Titan & Tethys

Headquarters — in theory

Earth

Home of the UAC headquarters and High Council — the board that moves pieces across the solar chessboard. Mercury Rising treats that authority carefully: nothing is quite as it seems when profit, law, and morals collide off-world.

Planet photography: NASA / ESA / mission archives via Wikimedia Commons (public domain or open reuse). Hell has no real-world plate — stylised panel only. News-agency photos are not used.