The Retaliator is a level 3 special tower; it attacks not by normal means like most other towers, but by launching ICBM-style nuclear missiles that cause catastrophic explosions capable of destroying most units and heavily damaging the ones that survive. The nuclear missiles have about a screen length's radius; the further units are from the impact point, the less damage they take. The missiles fired by the Retaliator must be armed manually and cost 11 metal and 1000 energy per second to build, but have global range and can only be stopped by anti-missile defense systems like the Fortitude Missile Defense and the Hedgehog. The CORE counterpart to the Retaliator is the Silencer.
- Because the Retaliator can attack, it has the ability to switch between firing modes like normal combat units, but is incapable of firing on its own accord.