I will add to this:
Galactic genocide simulator
-Stellaris
Medieval atrocity simulator
-Crusader Kings II
World war II gone wrong simulator
-Hearts of Iron IV
Happily exterminate entire species of intelligent creatures and turn planets into radioactive wastelands on a monthly basis.
-Stellaris
Demigods with tank armor rip everyone apart with sword-shaped chainsaws, living zombie robots try to kill everything, blue people actually use guns and...