The Gilded Chest Bastion can spawn a few different locations. All of these chest locations however are in Bastion. Specifically, they are located inside the Citadel of Loyalty. Players should also be warned, these chests are typically heavily guarded. Sometimes it's a handful of enemies, other times it's one large enemy. Either way, the citadel is swarming with enemies. Players will likely have to fight for their gilded chest.
Gilded Chest Bastion: Where Do You Find the Treasure?
One location is in the western part of the citadel. Follow the pathways to the left once in the citadel and you'll see the chest below one of the walkways. It's faster to just hop down off the walkway and use the wall of rocks to land in the outcropping where the chest is.
A second location is in the northeastern part of the citadel. From the staircase to enter the citadel, head northeast up a small set of stairs. This should lead to an open area with lots of enemies to maneuver around. In the back of this area on the right, there should be a short hallway. This hallway should have a side room on the left, where the chest is located.
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A third location is found in the back corner of the citadel. The room where the chest can be found is on the edge of the map. In one of the most northern points in the citadel, there is a walkway with two small sets of stairs. At the end of this walkway is a circular room that contains the chest.