The Jellyfish is an artifact found in S.T.A.L.K.E.R.: Lost Alpha and all S.T.A.L.K.E.R. canon games.

Is formed in the Trampoline anomaly. Forms a weak protective field whose side effect is a slight radiation. The artifact is widespread and not very valuable.
- Encycmopedia description


  • Unlike its appearance in the released game, the Jellyfish is much less abundant.
  • The beneficial effect of this item has been halved.


  • The encyclopedia description now refers to a non-existent parent anomaly, this could be merely a typo introduced by the developers.