Precise, devastating, silent and awesome. Now they are in use by the US Navy. Railguns are quite famous in futuristic-fictional animated works.
The katana proved to be the deadliest slashing weapon of its time. The construction of this curved-edge blade is an art. One of the few things that both nerds and warriors alike, would want to have.
3. SLAM MISSILE
The slam missile has a nuclear-powered engine, which allows longer flight duration. The real damage is done after the missile runs out of fuel and contaminates whatever area it falls on with radiation.
Lasers have long been scouted as a future weapon. Today, laser weapon systems serve mainly as defensive countermeasures.
5. IRON CURTAIN
Games like Red Alert 2 featured this technology. However, it’s no longer a fiction. DARPA (Defense Advanced Research Projects Agency) has successfully tested its iron curtain prototype.