Closure
Uncommon15.7%Experienced the end of the cycle. (Not available in Casual Mode)
The true ending - the actual end of the cycle - and your last act in the unmoored world: reaching and finishing the Seafloor Shrine finale. Not available in Casual Mode, so if the platinum is the goal make sure you're on Normal difficulty; you can't claim it retroactively. Crucially, do everything else in the unmoored world FIRST - clear all four trials for 204135858 and evacuate every settlement for 101715052 - because ending the cycle shuts the unmoored world for good and anything left undone waits until New Game+.