Abbey of the True Gun



The Abbey of the True Gun is a secret chamber in The Gungeon, accessed through a hidden passage found in a type of room that's found in the Gungeon Proper. Accessing it for the first time grants the achievement "Reverence for the Dead" and the Blood Brooch.

How to access

 * The Abbey of the True Gun is only accessible after visiting the Oubliette and acquiring the Old Crest.
 * The Old Crest must be carried into the Gungeon Proper without taking damage and placed on an altar, which can be found in a room with 7 big statues of bullet warriors, which will reveal stairs leading to the Abbey of the True Gun.

Boss
Defeating the Old King rewards the player with a locked synergy chest as well as a normal boss reward. Like all bosses in secret floors, there is no Master Round for beating the Old King flawlessly.

Enemies
In a few room layouts, certain enemies are guaranteed to be jammed regardless of curse.

Trivia

 * Statues of Kaliber can be seen as decoration in the boss room.
 * Paintings of the High Priest can be found throughout the floor.
 * In addition, paintings of the minions summoned in the boss fight against Interdimensional Horror are mysteriously found throughout the floor.
 * The music that plays in the Abbey was originally used in Keep of the Lead Lord during the alpha.