Elden Ring puts you in the role of a Tarnished, and their journey through the Lands Between to become an Elden Lord. To do this, you must explore every nook and cranny in these vast lands, where you must defeat countless enemies that await out in the open, in castles, or even catacombs full of monsters.
Related: Elden Ring - Minor Erdtree Catacombs Dungeon Guide
The War-Dead Catacombs are one of those dungeons with mysteries inside and a boss waiting for you at the end. After you defeat Starscourge Radahn, the arena will be yours to explore, and this shady place will be one of the various things to discover in that area.
You can find these catacombs after defeating Radahn, in the very same area where the fight occurs. If you go to the northern part of this zone, you won't be able to notice it at first, but on the massive rock wall will be a wooden door. You just need to open it up to explore the War-Dead Catacombs.
As you get inside, you will walk down some stairs and cross through a short hall, only to find a massive amount of Cleanrot Knight Spirits fighting each other in an open area. They are immensely strong and will vanish in and out of sight as they see fit, so your chances aren't great. The key in this situation is to ignore them completely and run past them to the end of the hall, where some stairs at your right will take you to the second floor.
There, you will encounter numerous ghastly soldiers across two more halls that can also use bows, so avoid as needed and keep moving on ignoring them, until you reach the second hall. You will see a tall knight in the distance in a praying position. Ignore him and jump through the window at your right instead. This will take you to another set of stairs, and following
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