#Japan #Tokyo #Sega NET Mahjong #Heirloom series #Heirloom Cup

Sega's Exclusive Collaboration Event: Heirloom Cup

The gaming industry is buzzing with excitement following Sega's announcement of the Heirloom Cup, a special event that pairs its popular network mahjong game, Sega NET Mahjong MJ, with the beloved Heirloom series. Starting from June 22, 2026, players can dive into a competitive environment like no other, featuring unique in-game items, challenges, and even exclusive prizes inspired by the Heirloom universe.

Overview of the Heirloom Cup

The Heirloom Cup brings together both the mobile and arcade versions of Sega NET Mahjong MJ. Players can compete in two types of matches: East Wind Games and Three-Player Matches. The competition will be fierce as players aim for the highest overall score to qualify for the finals. Those who perform well in the qualifiers will have the chance to battle it out from July 6 to July 12, 2026, with the champion emerging as the player who obtains the highest score during this decisive period.

Participants of the app version can earn incredible prizes by fulfilling specific criteria. This includes special evolving characters and various Heirloom-themed visual elements, ensuring that every player has a chance to enhance their gaming experience.

Event Schedule

• - Qualifier A: June 22, 2026 - June 28, 2026
• - Qualifier B: June 29, 2026 - July 5, 2026
• - Finals: July 6, 2026 - July 12, 2026

Exclusive Heirloom Items

Throughout the event, players can collect numerous Heirloom-themed items, including:

• - Evolving SP Character (SSR): Sharon
• - SP Character: Agree
• - Table backgrounds: Five exclusive designs, such as Treasure Guided Background and RB Background.
• - EX Backgrounds: Three unique visuals including Demo Screen Background and Trolley Background.
• - Claim Button Effects: Special buttons featuring characters like Hart and Maya.

Heirloom Gacha

In conjunction with the Heirloom Cup, players can participate in a Heirloom Gacha, providing access to 52 limited-time collaboration items, including characters like Clair and various backgrounds and effects inspired by the Heirloom series. This Gacha event runs from June 22 to July 12, 2026, with rolls costing 500G each.

Arcade Version Events

For players who prefer the arcade experience, the arcade version of Sega NET Mahjong MJ will also host qualifiers and finals. The event mirrors that of the app, with activities running from June 22 to July 12, 2026, but operating on a slightly different schedule from the mobile qualifiers.

Heirloom Gacha in Arcades

The arcade Gacha will showcase 24 collaboration items including:

• - Functional SP Characters: Two unique designs featuring Clair and Hart.
• - Table backgrounds: With special pieces like the Treasure Guided Background.
• - EX Backgrounds: Six unique designs to enhance the visual experience.

Special Campaign on X

To celebrate this exciting collaboration, Sega is launching an X-follow and repost campaign from June 22 to July 5, 2026. Eight lucky participants will be randomly selected to win exclusive Heirloom merchandise. Be sure to follow the official MJ account on X for your chance to win!

What is the Heirloom Series?

The Heirloom series has captivated players’ hearts since the original release of the 4th generation game in July 2006. With its gripping game mechanics and user-friendly features, it promises an exhilarating experience that keeps players returning for more. You can find the game in gaming halls nationwide and experience the thrill first-hand.

About Sega NET Mahjong MJ

Sega NET Mahjong MJ delivers an unmatched gaming experience, combining realistic tile and hand movements, along with intense match displays. Available on mobile and PC, it's a top-tier mahjong game that players simply cannot miss.

• - Available on: iOS, Android, Windows, and MAC
• - Base price: Free with in-app purchases available.

With so much to offer this summer, don’t miss out on joining the Heirloom Cup and unleashing your skills in Sega NET Mahjong MJ!

For more details, visit the official MJ series portal here.