蜉蝣之国的囚徒

Fourteen from across the world are abruptly abducted to an isolated structure dubbed "Ephemera Manor". They are strangers, but now forced to partake in an ancient and eerie ritual—"the Feather-Burning Rite". A bloodstained drama spanning millennia has silently unfolded...

At a glance

• Platform: Windows.
• Genres: Adventure, Indie, RPG.
• Release date: Jan 8, 2026.
• Steam user reviews: Mostly Positive (78% positive).
• Delivered as a Steam library entitlement — activation is handled by Steam.

Minimum

Recommended

System requirements as published by the developer on Steam.

Activate on Steam

• Open the offer above — it takes you to this game's official Steam store page.
• Buy it there, or if you bought a key elsewhere, open Steam and choose Games → Activate a Product on Steam.
• Enter the product code exactly as it was issued to you.
• The game appears in your Steam library — download and play.

CDKeyCheap does not sell keys. We track and display prices; every purchase happens on the store you click through to.