Calculate the correct valve sequence for the Gorod Krovi Easter Egg in Call of Duty: Black Ops 3 Zombies.
Valve Locations & Temperatures
Valve Sequence
Locate all 4 valves around the map and note their temperatures.
Find the 3 Groph Modules and record their 3-digit codes.
Use the calculator to determine the correct valve order.
Turn the valves in the calculated order to complete the step.
Valve Locations
Easter Egg Progress
How It Works
The valve step requires finding temperature readings at each valve location and using Groph Module codes to calculate the correct sequence.
Pro Tips
Use the Mk3 Ray Gun to defend yourself while turning valves. Complete this step before round 12 for best results.
Important Note
If you enter the wrong sequence, the valves will reset and you’ll need to start over. Use this calculator to get it right the first time.