
To be able to build the submarine you need a successful battle against the Octopus (V1).
Only those who have been successful here and have received the "Explore the Depths" achievement can build - and drive - a submarine. Anyone can enter it.
Mythos is required in the submarine's inventory for driving.
Submarines are built in the Ship Hangar. Blueprints from the Sunken Sea Chest submarines can also be built in quality.
Note: Even if the skills speak of "Submarine" and "Ballista Submarine", there is only one submarine on the RA server, which is described here.
The submarine has three offensive options:
- The gripper arms, which you can operate at the wheel using the mouse buttons.
- The main gun. Ammunition "Ballista Bolts"
- The secondary guns. Ammunition: "Spear Bolt" (like the spear launcher)
The auxiliary guns can only be manned by additional players, NPCs do not work.

