Polaris 7 (Starfinder)

From publisher blurb:

A World Hard and Cold
At the farthest edge of explored space, the frozen core of an icy ball of nothing beats with raw energy and priceless tritillium, and the Corporation will stop at nothing to drain every drop to fill its coffers. Explore a desolate world with untold riches lying beneath its surface and a silent but savage war of intrigue between the rival factions that control its mining industry and the crucial operations vital to survival on an inhospitable planet. Get a detailed planetary gazetteer, brand-new feats, pharmaceuticals, magic items, and more, plus the deadly xenomorphic cryo-mantids awakened from their deep tunnels to hunt and annihilate the invaders of their homeworld.