A gun, typically consisting of two or more long metal rails flanking the launcher (hence the name), that uses electromagnets to fire projectiles with extreme force and speed. The projectiles do not contain explosives, instead relying on their high kinetic energy to inflict damage.
In real life, railguns are still under development to reduce the power input needed to operate the system, and to reduce the wearing of the system for military uses. Railguns are often seen in science fiction works due to their advanced design and extreme power.
