Stronghold/Structure/Portal Room

This page documents the layer-by-layer composition of a given generated structure, terrain feature, or feature.
 

The end portal room is the only room guaranteed to generate in a stronghold. It generates never within five rooms of the starting staircase, althought it is less likely to generate farther away, and its entrance is always a grate of iron bars.

They are composed of stone bricks, stone brick stairs, lava, iron bars, end portal frames and one siverfish monster spawner. Compared to every other room in the stronghold, the portal room is the only one that always generates the entire outer wall, therefore being the only room to always result complete after generation.

Each portal frame has a 10% chance to generate containing an eye of ender; this means that the average number of portal frames already filled is 1.2, while the chance of the portal being completely filled and activated upon generation is one in a trillion (1:1,000,000,000,000 or 10-12).

Materials

Name Amount
Stone bricks 704
Stone brick stairs 8
Iron bars 39
Lava 15
End portal frame 12
Silverfish monster spawner 1

Blueprint

Ground Layer
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
Layer 7
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