Frozen worlds resemble lush worlds in the ice ages, having a surface covered by ice and snow. Trees tend to sprawl quite a lot here. However, the less the amount of flora, the higher the amount of dead trees. When viewed from space, they are generally snow-white in color. The resources Dioxite, Frost Crystal and Radon can be found here.

Note that Hazard protection is always on due to frigid temperatures. Thermal Protection upgrades are recommended, especially on extreme worlds.

Cold storms can occur, draining hazard protection up to three times faster than normal.

Water can be found on some frozen biomes.

Biome Subtype - Infested
The Infested subtype can overlay the normal planetary biome types, creating twisted, infected flora not seen on other planets of the same variants.

They come in six different planetary pallets with each seemingly having its own main flora type for each planetary variant. Whispering Eggs dot the landscape and Biological Horrors appear with them when broken, similar to Dead worlds.

Infested planets also display chromatic aberration filters as well as glitch music, similar to Mega Exotic and Exotic worlds.