Wait for the core meltdown

a game where you wait for the core to meltdown the core become so dense that nearly become a blackhole but stayed in the form of a small neutron core the core is using something... unknown? It using something called Posimatter It matter but there is not negative power and there is only positive power so positron has double the power of a normal positron (normal positron act like negative charges but are positive and it's just invented this thing... randomly)