Dead planet

Dead planets are planets that have no atmosphere. Natural dead planets are either too close to the sun (Burnt) or too far away (Frozen). Artificial planets always start out dead. Because they don`t have atmosphere, they don`t have water (seas), life (bushes, forests, and Pinatosaurs), or wind. They have no cultivable biomes, and Terraforming can't convert a biome to a cultivable biome.

An animal on a dead planet takes twice as much time to work (unless equipped with optimized helmets). The only housing available on dead planets are colony pods, which cost 50 plastic and 20 glass and require 1 energy. Power plants require air, so the only Energy-producing structures that can be built on dead planets are solar panels, heat collectors, nuclear power plants, and spaceships.

Hydroponic farms are the only kinds of farms that can be built on a dead planet.

Strategy
It`s very difficult to have a thriving colony on a dead planet. The recommended discoveries are:


 * optimized helmet
 * any kind of energy except wind
 * habitat optimization