U.S.S. Mount Olympus is a Nazi Zombies survival map in Call of Duty: WWII. The map is a endless survival version of the second chapter "Across the Depths" within The Tortured Path. It can be unlocked once the player completes all three easter eggs within the three chapters of The Tortured Path in a public lobby. Currently, it can only be played in custom matches.
Unlike the map's original version, U.S.S. Mount Olympus features the previous traditional features within the game, such as the Mystery Box and several Weapon Lockers, with the weapon lockers being in place of where the Waffenboxes are in the original map, with the exception of the Waffenbox for the sniper rifles. The Ubersprengen is located in the same place as it is in the normal map, but it cannot be activated until the three devices around the map are charged, which can only be finished starting after Wave 9. The map's only Mystery Box is located on the lower deck, across from the first Ubersprengen device and Schildblitz. The map's only Geistchild machine is located in the ship's main hallway, directly across from the doorway leading into the briefing room and where the first Überschnalle battery would go during the original map's easter egg quest.
Enemies featured within the map are normal Zombies, Pests, which begin to spawn on Wave 5, and Bombers, which begin to spawn on Wave 8. Unlike every other map within the game, the map features no Wüstlings.
Like the other survival maps featured within The Tortured Path, the player can upgrade the Tesla Gun, Ripsaw, and three melee weapons through the Ubersprengen. To do this, the player must turn a total of six valves within the ship. Locations are as followed:
In the Briefing Room, to the right of the screen.
In the Cafeteria, to the left of the staircase leading up to the top deck.
In the maintenance room between the Cafeteria and the Barracks. There are two valves located here.
In the Barracks, to the left of the table left of the Medical Bay.
Upon turning all six valves, a red battery will appear across from the Ubersprengen on the ground. Picking it up will cause it to appear on the Ubersprengen, allowing the player to upgrade the Tesla Gun and the Ripsaw on Wave 25, and the melee weapons on Wave 30.