Developed at the Breeder Reactor, Isotope Stability is an upgrade available to Chinese generals and requires Nuclear Tanks to be researched first.

The use of nuclear engines in Chinese tanks did not come without risk, as the engines are prone to explode should the tank be destroyed. Isotope Stability installs fail-safe measures on the engines to prevent them from a causing chain reaction in the event of the vehicle's destruction, preventing the collateral damage from harming friendly units.