The title and design of the latest Super Shotgun from DOOM Eternal inspired me to come up with an unofficial concept for the location where it might be found. It's a very ornately-designed weapon, with ancient texts and intricate engravings marking its surface so I felt a holy resting place was called for.
A shrine dedicated to its power, sealed away so none but the Slayer may use it.
When making the piece I kept in mind how it might function if it were actually in the game, and made a rough mock-up to illustrate just that. The chains are protected by an ancient magic and cannot be broken except by the Slayer initiating that act.