PLAYISM is proud to announce that HEART of CROWN, the deck-building succession battle card game developed by illuCalab, has been fully released on Steam. To celebrate the release, a limited-time launch discount of 10% will be available on Steam for the first two weeks starting today!

Additionally, the Switch version will be available for NA/EU players in 2026! We'd like to apologize and thank everyone for their patience and stay tuned for more information regarding release!

About the Game

With the sudden death of the great emperor, you must now build your deck to enthrone the princess of your choice!

Your role is to support the princess. Get ready for this exemplary deck-building game based on a succession battle!

Expand your domain and gather powerful supporters to seize the throne!

Indie game studio illuCalab, creator of titles such as Gensou Skydrift and A Magical High School Girl, based on HEART of CROWN on the analog card game of the same name, which was produced and published by FLIPFLOPs.

■ Gameplay

In this four-player turn-based card game, you'll compete to get your princess on the throne vacated by the great emperor!
To get ahead in the game, use the money from your territories to purchase even more territories and action cards.
Once you have enough resources, it's time to back a princess!
Each princess has a powerful ability, so you'll want to be first to pick!
Make allies of senators, dukes and other power brokers, and once you hit 20 succession points, the coronation ceremony will begin. Victory and the throne will be yours.

The game supports online cross-play between Steam and Nintendo Switch, and includes Ranked and Custom matches.
With a scenario mode as well as a host of talented voice actors, this game can be enjoyed by both single and multiple players.

Please note that the Steam version now supports Steam Achievements!

Experience beautiful animations and interfaces in this digital incarnation of HEART of CROWN!

■Card sets

In addition to the base card set, the game includes content from the expansion sets “Far East Territory” as well as select cards from “Northern Enchantress.”

The new princess character from “Northern Enchantress (Second Edition),” Anastasia, the Northern Enchantress Princess, along with several new cards, is planned to be added in a future free update.

■Story

In a wild time when swords and magic still ruled the world, an empire had united the entire continent and ended a long war.
However, before the peace could be solidified, the great emperor fell ill,
without a successor in place......

If this continues, we could be back to a war-torn world!
You are one of the most powerful people in the empire. You must quickly establish the emperor's throne and ensure the unity and peace of the continent.
The emperor had no male children, but fortunately, he had seven candidates to succeed him, including two princesses of direct descent.

Now, let's get the princess of your dreams to ascend to the throne!

■Voice actors (illustrations to be revealed on illuCalab.'s official X account)

Nintendo Switch Physical Edition is now available for everyone!

The physical edition for the Nintendo Switch is also available now! Don't miss out on limited time bonuses like the set of 8 princess hologram cards that can be used in the physical card game.

*For players in NA/EU: Physical version is only available on the PLAYISM Official Store and will include the Japanese version.

Original Soundtrack Available Now on Steam!

To celebrate the game's full release, the original soundtrack featuring a total of 25 tracks is now available on Steam! Either grab it standalone or get it for 10% off with the base game + OST bundle! The soundtrack includes selected tracks from the previous title, HEART of CROWN PC.

Product Information

PLAYISM Official Store Page　｜　Nintendo eShop　｜　Steam Store Page

■ Release date: December 18, 2025 (Steam, Nintendo Switch in Asia)
*Switch version coming to NA/EU in 2026!
■ Developer: illuCalab, FLIPFLOPs
■ Publisher: PLAYISM
■ Genre: Deck-building succession battle card game
■ Languages (text): Japanese, English, Simplified Chinese, Traditional Chinese
■ Languages (audio): Japanese
■ Platform: Nintendo Switch, Steam
■ MSRP (Physical Version): 5,500 yen (with tax)
■MSRP：$29.99
*For the first two weeks following release, a 10% discount will be available on Steam.
■Original Soundtrack：$9.99
*For the first two weeks following release, a 10% discount will be available on Steam.

© illuCalab © FLIPFLOPs. All rights reserved. Licensed to and published by Active Gaming Media Inc.