Inertial confinement fusion reactor with an added magnetic confinement fusion boost powered by hot deuterium and Tritium, with added lithium boost. Also has 3 built in particle accelerators for an extra reaction enhancing effect. Also has a few Neutron Bombardment Units and muon/tachyon catalyzers (muons and tachyons may not work, but thinking of injecting Dark Matter into the fuel cycle). This heats up a central core and flows through a water tank, turning into steam then through a turbine and generator, but then condensing and flowing back into the tank. Also has feed water and coolant and helium cooler systems and relief valves and all that, but it is suspended in a large central chamber with almost liquid-point but still gaseous nitrogen. This is just a futuristic design.