The host of the game is able to start a fresh game or load a previous session that was not completed. Up to 32 players may play in one game of Hearts of Iron IV at the same time. Multiplayer enables Hearts of Iron IV players to play online with other people. The Tutorial game may be continued as if it was a standard playthrough after finishing it. Playing the Tutorial gives a quick run-down of the game and is therefore highly recommended.
The Single Player menu allows for playing the Tutorial or to start a new game as well as to load a previous saved game. All other countries will be controlled by the computer. Single player offers the one-player game of Hearts of Iron IV.