Disgaea 4: A Promise Unforgotten was released in Japan for the PlayStation 3.
Disgaea 4: A Promise Unforgotten was released in North America for the PlayStation 3.
Disgaea 4: A Promise Unforgotten was released in Europe for the PlayStation 3.
The game was ported and released on the PlayStation Vita in Japan.
NIS America announced Disgaea 4 Complete+, an updated port of Disgaea 4 for PlayStation 4 including all DLC.
Disgaea 4 Complete+ was released for PlayStation 4 in North America and Europe.
Valvatorez, a former tyrant vampire, is made the Overlord of the Hidden Village, beginning his quest to protect the weak and uphold his promise to a loved one.
Valvatorez makes a solemn promise to Fuka to protect the weak and change the world, which becomes his driving motivation throughout the story.
Due to his tyrant past, Valvatorez is forced to retire and becomes a teacher at the Evil Academy, setting up the initial premise of his current life.
The Netherworld Grand Prix is announced, bringing political intrigue and contests of power to the Netherworld, affecting many characters' motivations.
Valvatorez uncovers a corrupt system within the Netherworld that exploits innocent souls, motivating him to fight against the corruption.
Adell, a spirited warrior, teams up with Valvatorez, adding to the party's strength and changing the course of events.
The group attempts to expose and stop the corrupt government officials exploiting citizens, marking the climax of their rebellion.
Valvatorez confronts the ultimate antagonist to prevent the destruction and bring justice to the Netherworld.
Valvatorez fulfills his promise by changing the Netherworld for the better, ending the age of corruption and tyranny.