Mansions

Massive dungeons that spawn in dark oak forests. They can contain many different types of rooms, and will spawn a mass of Vindicators and Evokers. Killing these defenders will not cause them to respawn. Mansions have 3 levels, the ground floor, the second floor, as well as a closed-off attic.

Ground floor Rooms

Grand Stairway

Spans 2 levels, connects the ground and second floor. This will always spawn. The bulk of the mansion's spawns will be here, as it is the largest room.

Forge

Randomised armorstands will spawn here.

Library

Dining Room

Kitchen

Mushroom Farm

Known to cause dropped mushrooms.

War Room

Brewery

Second Floor Rooms

Bunk

Lounge

The terracotta is random.

Master Bedroom

Piano Room

Storage Room

Study

Attic

The attic occupies the hollow space above the second floor. Spiders and cave spiders are spawned here, along with sparse loot chests.