Fortress-Monastery

A fortress-monastery is the central base of a Space Marine Chapter. As Space Marines are viewed as warrior monks, a fortress-monastery holds elements of both a military base and a monastic chapel. Taking no chances with regards to defense, a fortress-monastery will be the most well defended bastion of Imperial strength on the planet (the fact that most Space Marine Chapters live on Feral and Death Worlds whose inhabitants are usually unaware of the greater galaxy is not an issue). Indeed, the only way that a fortress-monastery is the most defended base in the entire sector is in the off chance that another Space Marine fortress-monastery is located in the same sector.

Each chapter will have different buildings and substructures as per tradition or need, but the following locations are always found in fortress-monasteries:

• Apothecarion: The fortress-monastery's medical center, where surgical suits for transforming Neophytes into full Astartes is done. It is also the place where gene-seed is housed, and possesses facilities to assist Apothecaries in gathering genetic data from progenoids and cultivate them into gene-seed organs.
• Armoury: The abode of the Techmarines, which serves as the Chapter's motor pool, repair shops, and chapel to the Omnissiah all in one. Several Chapters with unique equipment, such as the Blood Angels and the Dark Angels, have special Standard Template Constructors which fashion unique vehicles and weapons. The Chapter's Dreadnoughts will often be housed in a subsection of the Armoury.
• Chapter Master's quarters: The private throne room and personal cell of the Chapter Master. Frequently the Chapter Council, composed of the ten Brother-Captains and other senior officers, will meet in the Chapter Master's throne room.
• Communal dormitories: Housing for the Chapter Serfs, when they aren't attending to their duties.
• Company block: The housing for each Space Marine company. Each Astartes is given a single small room, called a cell, which houses a bunk and a place to store their Power Armour. Each squad has a personal arming chamber which stores their weapons, ammunition, and replacement parts for their Power Armour. The Brother-Captain will have a larger cell that serves as an office where he can work on the logistical matters of company leadership and a private arming chamber. Each Company block will also house a Company chapel, where the Chaplain will lead them in prayer.
• Librarium: The abode of the Librarians, where the Chapter's records are housed and where potential Librarians are tested. The Chapter's Astropaths will often work in here, as well.
• Reclusiam: The abode of the Chaplains, where rituals involving the whole Chapter, such as the coronation of a new Chapter Master or a funeral for an entire company, will be held. The Reclusiam also contains ancient Chapter relics, and is overseen by the Reclusiarch, a post sometimes held by the Master of Sanctity.