Plutonium is the second isotope you will mine. It will start to occur at level 34 and achieve maximum at 54 (upgrades and miners still increase the amount you get, but not depth).
Plutonium is available as three different isotopes.
|Plutonium 1||$1,000 / unit|
|Plutonium 2||$20,000 / unit|
|Plutonium 3||$500,000 / unit|
It is a requirement for the following upgrades (v0.14/19 mar 2021):
|Recipe||Plutonium 1||Plutonium 2||Plutonium 3|
|Extreme Industrial Cargo||10,000||100|
|Gold King Cargo||5,000|
|Robo Anthropomorphic Engine||100|
|Helium Coolant System||30,000|
|Vacuum Chilled Coolant System T3||100,000|