On a tidally locked ice moon, an infantry engineer lands with the first wave to open a route from a shattered drop-zone to a refinery hub.

Under the colony, something hunts through heat and vibration, turning floors, conduits, decking, and refinery systems into traps beneath their boots.

A geomagnetic storm kills comms, suit seals begin to fail, and every step across the ice can drop a soldier into whatever is waiting below.

This is "Under the Ice" by Sascha Schmidt.