Ecdysis

In the interactive-fiction version associated with the Commonplace Book project, the player wakes up feeling as if they have a fever. The surrounding environment begins to reflect two different realities, making the protagonist's identity and perception central to the story.

The game asks the player to negotiate between its two overlapping realities through text commands and discoveries. The central challenge is deciding how to interpret the changing environment rather than solving an action-based combat system.

The text-adventure Ecdysis is credited to Peter Nepstad and was discussed as part of the Commonplace Book interactive-fiction project. Reviews describe it as a short work with a deliberately unsettling approach to perception.

Reviews of the text-adventure describe two possible endings. Both outcomes are tied to the player's handling of the protagonist's increasingly divided sense of reality.