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Marathon’s Nightfall Refresh Is Scheduled for October 6 Before Symbiosis on December 8

The October update will reset progression and the economy, while December adds permanent PvE, a refreshed Perimeter, and a social space with a firing range.

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A Marathon crew moves through a red industrial corridor with weapons ready

Bungie is splitting Marathon’s next wave of content across two future updates. The material originally planned for the September 22 release will now arrive with Symbiosis on December 8, while a smaller Nightfall Refresh is scheduled for October 6, as outlined in Bungie’s development update.

October will give every player a fresh starting point through a progression and in-game economy reset. Season 2: Nightfall launched with progression and reward issues that pushed some players toward the endgame faster than others. Bungie said that made Extraction harder to engage with and prevented the reset from working as intended.

The Nightfall Refresh will also add a new Rewards Pass, quality-of-life improvements, and live tuning and balance changes. Vault Breaker will return for a limited time as well, giving Bungie another chance to study how its PvE structure fits into progression after the reset. The mode previously received its own extended run in an earlier Vault Breaker update.

Bungie also plans to use the eight weeks between the October and December updates for gameplay experiments and development updates. The studio is moving away from a strict seasonal schedule so it has more time to build, test, and improve features before launch.

December Symbiosis adds permanent PvE

Symbiosis will introduce Marathon’s first permanent PvE experience, giving players a way to engage with the world outside the usual PvPvE extraction format. The update will also refresh the Perimeter zone and add a new social space with a firing range.

December’s release will include a new Runner shell, an experimental PvP Team Deathmatch mode, and the first set of improvements to Marathon’s new-player onboarding. Bungie described Symbiosis as the first major step in the game’s next chapter, with further changes planned through March and beyond as player feedback informs development.

Bungie acknowledged that players have been asking for more depth, variety, stronger progression, and better reasons to keep returning over the long term. The October reset will address the current foundation first, while Symbiosis will add more ways to play in December.

Which part of the roadmap will do more to improve Marathon for you, the October reset or Symbiosis’s permanent PvE? Share your thoughts in the comments, and follow us on X, Bluesky, YouTube, Instagram, Steam, and Telegram.

A PvP-focused extraction shooter set on the mysterious planet of Tau Ceti IV, Marathon will see players inhabit the bodies of Runners, cybernetic mercenaries who have been designed to survive the planet’s harsh environments and explore the lost colony that once inhabited Tau Ceti’s surface. Players will engage solo or in crews of three, searching for mysterious alien artifacts, as well as for valuable loot and new weapons and gear that they can add to their collection.