Netmarble Celebrates 6th Anniversary of The Seven Deadly Sins: Grand Cross

Mobile game marks milestone with 'Dreamy Night' festival update, new hero, and more

Published on Feb. 26, 2026

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Netmarble, the developer and publisher of The Seven Deadly Sins: Grand Cross, has launched a '7DS 6th Anniversary Festival: Dreamy Night' update for the mobile game. The update introduces a new UR-grade hero, [Chain of Despair] Nightmare Salos, along with expanded narrative content, login rewards, and various in-game events and activities to celebrate the game's 6th year of global service.

Why it matters

The Seven Deadly Sins: Grand Cross has amassed over 70 million downloads worldwide, making it one of Netmarble's most successful mobile game franchises. The 6th anniversary update aims to engage the game's loyal player base and attract new users with fresh content and celebratory events.

The details

The '7DS 6th Anniversary Festival: Dreamy Night' update includes the introduction of a new UR-grade hero, [Chain of Despair] Nightmare Salos, created from the combined trauma of the Seven Catastrophes. Nightmare Salos grants Chains of the Covenant to enhance allied stats and reduce damage, while inflicting Cursed Chains on enemies. Players can experience the hero through a special Hero Trial Story before summoning. The update also expands the game's narrative with Chapter 3 of the Seven Catastrophes storyline and newly voiced content added to earlier chapters.

  • The '7DS 6th Anniversary Festival: Dreamy Night' update launched on February 26, 2026.
  • The Anniversary Festival Draw event runs for the duration of the festival, guaranteeing a UR or SSR hero at 300 and 600 mileage, and either Nightmare Salos or Nightmare Sabunak at 900 mileage.
  • The new Catastrophe Battles with Lillia, Eastin, and Sabunak, as well as the Legend Boss Battle featuring Roxy of madness, will start in mid-March.

The players

Netmarble

A leading developer and publisher of high-quality games, including The Seven Deadly Sins: Grand Cross.

[Chain of Despair] Nightmare Salos

A new UR-grade hero introduced in the '7DS 6th Anniversary Festival: Dreamy Night' update, created from the combined trauma of the Seven Catastrophes.

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What’s next

Additional activities announced for the '7DS 6th Anniversary Festival: Dreamy Night' include special missions, a Wish Box event, and the lottery-style 'Essette's Fortune' event that can grant up to 600 Diamonds. New progression features, such as LR Evolution for [Vengeful Saw Blade] Roxy of Madness and a new Holy Relic for [Abyssal Shadow] Nightmare Sabunak, have also been announced.

The takeaway

The Seven Deadly Sins: Grand Cross continues to be a major success for Netmarble, with the 6th anniversary update showcasing the developer's commitment to expanding the game's content and engaging its loyal player base. The introduction of new heroes, narrative content, and celebratory events demonstrates Netmarble's efforts to keep the game fresh and appealing to both existing and new players.