Disgaea 4: A Promise Unforgotten is a tactical RPG and the fourth installment of the Disgaea series by Nippon Ichi Software. Using turned based combat and the isometric battlefield gameplay from the previous installments, Disgaea 4 includes new features, such as the Magichange system.

Disgaea Infinite is a interactive visual novel developed by Nippon Ichi Software for the PlayStation Portable. The game is part of the Disgaea series, using the same setting and characters as Disgaea: Hour of Darkness, and also has appearances from Disgaea 3: Absence of Justice's protagonists Mao and Raspberyl.

Prinny: Can I Really Be the Hero? is a 2D side-scrolling platform game developed by Nippon Ichi Software for the PlayStation Portable. It is a spin-off title in the Disgaea series and stars the Prinnies as the main character.

Disgaea 3: Absence of Justice is a tactical RPG and the third video game in the Disgaea series by Nippon Ichi, and the first to be released on the PlayStation 3. Like previous installments, battles are performed on isometric maps with a group of characters. The newly added "magichange" system allows monsters to transform into specific weapons in which a partner can use to execute a strong technical attack.

Disgaea 2: Cursed Memories is a tactical role-playing video game developed by Nippon Ichi Software for the PlayStation 2 and Playstation Portable (as Disgaea 2: Dark Hero Day).

Makai Kingdom: Chronicles of the Sacred Tome is a tactical role-playing game developed by Nippon Ichi Software for the PlayStation 2, with an enhanced port for the PlayStation Portable titled Makai Kingdom Portable.

Disgaea: Hour of Darkness is a tactical role-playing video game developed by Nippon Ichi Software for the PlayStation 2, Playstation Portable (as Disgaea: Afternoon of Darkness), and Nintendo DS (Disgaea DS).

La Pucelle: Tactics is a role-playing game developed by Nippon Ichi Software and released on PlayStation 2.