Abandoned Mansion

Add an abandoned mansion structure into the regular forest biome. It would be uncommon and about the same size as a jungle temple. It would have 2 floors and would have fallen into a state of disrepair, being covered in vines and cobwebs.

Inside on both floors will be randomly generated rooms like a dining room, a library or a forge. Some of the rooms will also have monster spawner adding a challenge for any explorer who enters. A player could also clear out the monsters and restore it into their base.

It would add more mystery and storytelling into the game, and add excitement to anyone who stumbles across one.