ESVA WIKI
3.12 · The creatures

Open Cases

What Open Cases are and why they only appear during an event.

reviewed 8 August 2026

What it is

Open Cases are esvas that appear only during an event: outside a running event they do not show up in the field. They exist to keep event material apart from what is always in rotation.

How I do it

Before you startEvent running With no event running, there is no Open Case to contain.required

What to do while no calendar is published:

  1. Check whether an event is runningSee whether an event is running. With no event, no quadrant shows an Open Case.
  2. Measure and contain during the eventWhile the event is running, the apparition is measured and contained like any other, with the flask.
  3. Register itOnce contained, the esva enters the collection and the species is marked in the Register.in gameCollection
In development

What is missing: The event calendar is not published yet: there are no dates, no order, and no list of which Open Cases enter each event.

What already holds: What already holds: Open Cases exist and are event material — they appear only while an event is running.

What I get — and what it costs

What I get
Contained Open CaseAn event esva in the collection, marked in the Register like any other contained species.Only while an event is running.
What it costs
Event onlyOutside the event, an Open Case appears in no quadrant.Event over, apparition overOnce the event ends, the apparition leaves the field.

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