on the surface they may look a bit similar because they are all map games, but otherwise its like saying that Deus Ex and call of duty are copies of each other
They all seem the same. Europa Universalis, Crusader Kings, Hearts of Iron,...etc...
Please see rule 2 before making posts like this.Why do most Paradox moderators have copy and paste beliefs in a friendly community that can take a joke?
Obviously the newer games are quite different, and have a lot of upgrades. But to play devil's advocate, there is a lot of LITERAL copy and pasting. The Hearts of Iron leader files are the biggest example. Localization, events, triggers, that sort of thing also.