Another twentieth century, a time of dieselpunk space exploration. Weird science has allowed humanity to explore and exploit the solar system; Saturn’s moon Enceladus is a prime target, with its abundant water, oil, and mineral wealth. However, there is sentient life in its sub-surface ocean, and within its thick, icy crust. They do not take kindly to intruders.

With various factions from Earth competing for the resources of Enceladus, whilst fighting or bargaining with the native groups, back on Earth a World War erupts, and support for the colonists all but dries up. The inhabitants of this dangerous world must fend for themselves, but the drilling and mining has awoken something ancient and terrible that lurks beneath the seabed…