Disgaea 4: A Promise Revisited first launched for PS Vita on January 30, 2014. It was later ported to PlayStation 4 and Switch as Disgaea 4 Complete+ on October 31, 2019, and PC via Steam and Microsoft Store on September 10, 2020.

Here is an overview of the iOS and Android versions, via its store pages:

About

The ultimate hardcore strategy RPG in history!

The Disgaea strategy RPG series has sold over five million copies worldwide.

The fourth title in the series, Disgaea 4: A Promise Revisited, is now available for smartphones!

Grind all the way up to Level 9999! Deal over 100 million points of damage!

Enjoy the challenging game system and the exciting story that features unique characters!

Story

Hades is a prison in the lowest depths of the Netherworld.

Here, the souls of sinners are processed and shipped out as the lowest of demons, Prinnies.

One day, Valvatorez, a vampire who now works as a Prinny Instructor, had his entire graduating class of Prinnies abducted.

After investigating, he discovers that they were abducted by the Corrupternment, the organization that controls the entire Netherworld.

In order to correct the tyranny of the Corrupternment, and more importantly, to fulfill his promise to give each Prinny one sardine, the vampire once feared as the Tyrant must take a stand!

Down with the Corrupternment! Seize the power! Reform the Netherworld!

The story of reformation in the Netherworld with Valvatorez, a vampire who no longer sucks blood, begins here!

Ranking Battles

You can compete with other players through the weekly themes and quests.

Depending on your performance, you will get Ranking Points that can be exchanged for useful items!

Compete with other players and aim to be the best in the Netherworld!

Additional Features for the Smartphone Version

• Auto-Battle – Battle even while you’re asleep! You can also set Auto-Battle on, not only for stages, but for the Item World as well.
• High-Speed Battles – You can adjust the battle speed from 1x to 8x! When combined with Auto-Battle, you can level up at amazing speeds, without even touching your phone.

Cloud Save Support

Save data can be transferred, regardless of your phone or device.

You can enjoy the game on your smartphone while you’re out, and on your tablet when you’re at home.

[Important]: Please set up an ID and password to manage your backups.

PlayStation 4 Controller Support (Partial)

You can use a PlayStation 4 controller to navigate the base, menus, and during combat (some optional menus, etc., are not supported).