กลับสู่ Klendathu

This path is unlocked once you complete all 13 Swarm disaster stories, and the achievement requires you to step on swarm type tiles 15 times during a single run. These include combat swarm, occurrence swarm and the final boss swarm domain. This can be easily achieved by utilizing the purple Dissociated die which allow you to convert all domains adjacent to an existing swarm domain into swarm domains of their own and the blue Devil, Pain and Love die which changes a random domain into a swarm domain. You’ll need to do your best to avoid using the gold die which let’s you teleport straight to the boss as you will need to physically enter each swarm domain for the achievement to count. If you get a gold die, simply discard it.

The phrase "Back to Klendathu" likely refers to the fictional planet Klendathu in the "Starship Troopers" universe, originally a science fiction novel written by Robert A. Heinlein in 1959. Klendathu is the home planet of the Arachnids, a species of insect-like aliens. The human military conducts a disastrous invasion of Klendathu as part of an interstellar war against the Arachnids. The phrase suggests a return to this dangerous, hostile environment, possibly for a new mission or campaign.