Netmarble Launched Demon Slayer Collaboration Event

The mobile game Seven Knights Re:BIRTH has introduced limited-time characters and modes inspired by the hit anime series.

Updated on Oct. 2, 2026 in Animation

Graphic illustration of a glowing, stylized fantasy katana blade against a dark background, representing an anime-themed mobile game event.
Netmarble has launched a month-long collaboration event between its mobile game Seven Knights Re:BIRTH and the popular Demon Slayer anime series. AI Illustration. Upload story photo >

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Netmarble has officially kicked off a month-long collaboration between its mobile title Seven Knights Re:BIRTH and the popular franchise Demon Slayer. The crossover introduces new playable characters, a limited-time event mode, and exclusive rewards for players.

Why it matters

The event integrates iconic characters from the Demon Slayer universe into the game to engage the player base with fresh content. By offering specific rewards through gameplay and check-ins, the collaboration aims to incentivize ongoing participation throughout October.

The collaboration spans 1 month, featuring 2 distinct content updates and a variety of limited-time characters and boss enemies. Players can acquire Tanjiro Kamado, Zenitsu Agatsuma, Giyu Tomioka, Shinobu Kocho, and Nezuko Kamado through various in-game mechanics.

The players

Netmarble

Netmarble is a major South Korean mobile game developer and publisher known for its diverse portfolio of titles.

Tanjiro Kamado

Tanjiro Kamado is the central protagonist of the Demon Slayer series and a primary focus of the new in-game collaboration.

Nezuko Kamado

Nezuko Kamado is a key character from the Demon Slayer franchise who appears in the game as a collectible Legendary Pet.

The details

Players can engage with the Infinity Castle event mode or battle Akaza as a boss in Event Challenge Stages. Characters like Tanjiro Kamado are available as check-in rewards, while others like the Legendary Pet Nezuko Kamado are earned through gameplay.

Timeline

  1. The collaboration began on October 1, 2026.

  2. A second update featuring new characters starts on October 15, 2026.

  3. The event concludes on October 29, 2026.

Industry Dynamics

This collaboration reflects the broader industry trend of integrating major anime franchises into mobile gaming ecosystems to maximize player retention. It follows the established strategy of utilizing high-profile intellectual property to align with global pop culture cycles.

Players can access the new Demon Slayer content immediately through the game's existing Pick Up Summons and daily check-in rewards. Access to specific characters is gated by the event timeline, requiring consistent play to unlock all available rewards before the October 29 cutoff.

The takeaway

The crossover provides a structured window for players to collect limited-edition items and characters within the game. Users should plan their gameplay around the mid-month update to ensure they do not miss out on the final wave of character availability.

What happens next

Netmarble is expected to provide further content updates and additional event details as the collaboration progresses throughout October 2026.

Further reading

Explore more industry news and crossover updates in the Animation section.

Source note: This article includes information reported by Game Rant.

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Do you enjoy it when your favorite anime series are integrated into video games?