A more robust version of the standard planetary defense missile. It carries a heavier warhead that results in more damage at the cost of speed. To compensate this missile is more heavily armored than the standard Planet Missile. Once researched, planets will add one Heavy Planet Missile per salvo for every 200 Million people on the planet (rounding up).
Requires: Fusion Warhead
Required for Heavy Ship Missiles
This information valid for Version 25003.10
Is an unlinked requisite for Stealthed Structures.