Introduced for Expedition 7 - Leviathan - an Expedition set to Survival settings; with a rogue-like element.

Players are expected to rely on these Memory Fragments, rather than unlocking tech & upgrades in the usual manners.

An early pop-up incorrectly labels this expedition as 'Permadeath', which it is not. The save file is set to Survival settings & will convert to a Survival save once the expedition's 6 weeks have concluded. The update notes also repeatedly referred to it as a Survival Expedition, not a Permadeath one; and the gameplay elements reflect this.