Allies can be deployed into combat, each with their own special skills and "Evilities", additional abilities that are applied to every character.

Here, equipment can be purchased or sold, specific functions can be carried out, the player can travel to other locations to advance the story, and such.

Unlike previous Disgaea hub towns, Hades comes with the ability to be rearranged to the player's liking, as well as changing the appearance.

Nippon Ichi, apparently feeling that it had exhausted all the game systems a school setting can provide, made the story one of a more political nature.

While aspects of Netherworld politics existed in previous games, it is the central focus of the story and the gameplay in Disgaea 4.

He now has a menial job in Hades, where the souls of dead humans are sent to be transformed into Prinnies, alongside his loyal servant, Fenrich.

Valvatorez and Fenrich battle across the Netherworld to win the support of the masses, and along the way, they meet several allies; Fuka Kazamatsuri, a young human girl who died and technically became a Prinny, but kept her human body due to a lack of resources; Desco, a monster created on Earth to be the 'Final Weapon', who was deemed a failure and cast to Hades; Death Emizel, the Netherworld President's only son, who was betrayed and declared legally dead by the government; and Vulcanus, a thieving angel who bears a striking resemblance to Artina, the woman from 400 years in Valvatorez's past, but has an entirely different personality.

Finally, Valvatorez and his allies assault the Corrupternment with the help of the support they have gathered, and defeat Netherworld President Hugo.

Furthermore, they learn that this situation was engineered by a human named Judge Nemo, who now runs both Earth and the Netherworld from behind the scenes, and plots the destruction of both.

Judge Nemo's plans are foiled, but his incredible malice triggers Fear the Great, a machine created by God in order to purge all life on Earth.

It is revealed that Nemo desires revenge for the death of Artina, who saved him in the distant past, and he cannot realize she has become an angel due to his evil.

These are: After defeating them the culprit finally gains full control of Fear the Great and reveals herself to be Asagi, who wants her own game.

[21] GameZone give it a 9/10 stating "Overall, Disgaea 4 is a blast, and easily cements Nippon Ichi’s legacy as the kings of the strategy RPG genre.