Large shield domes are the next step in the development of planetary shields, and is the result of years of work improving the Small Shield Dome. Built to withstand a larger barrage of enemy fire by providing a higher energized electromagnetic field, large domes provide a longer period of protection before collapsing. On each planet, only one Large Shield Dome can be built. After destruction in combat, the shield dome will self-recover with a probability of 75%.
An unlimited number of them can be built at orbital stations (satellites with diameter 100 km or less), where they protect the structure of the object, strengthening it with their shields. When an object is damaged, these outer shields will be destroyed first.