Marathon’s Symbiosis update launches December 8 with new PvE and PvP modes

New places and enemies in Perimeter

Perimeter has been reshaped by fungal growth and alien life. The updated zone opens new playable spaces underground in the Burrows and beneath the water in the Reservoir, giving Runners more of Tau Ceti IV to explore. A new threat also waits deep below the surface: the Tick Queen.

Expedition adds a PvE-only alternative organized around a three-run series. It can be played alone or with a crew, introduces new combat and environmental challenges without PvP threats, and lets players use Flash Boosts to shape their build during a run.

On the PvP side, Deathmatch enters beta as an experimental 3v3 Team Deathmatch mode. Two crews compete for points, with permanent loadouts protected from the risk of loss.

Limbo provides a separate social space where Runners can meet, test weapons and gear in firing ranges, and challenge one another in a dueling pit. The update also adds the Bishop Runner shell, built around the fantasy of a fast, surgical blade-wielding robot.

Two new weapons broaden the available approaches. The V17 Flamethrower is intended for short-range area denial, while the Maverick introduces a revolver archetype described as having a hand-cannon feel.

Symbiosis launches December 8 for all players, and Open Play Week offers Marathon from December 8–15 alongside the update. Marathon is available now on PS5 with full cross-play and cross-save support. Gameplay requires internet access and a paid-for subscription on console, sold separately.

Cross-save requires an internet connection. On every system where a player plays, they need a compatible copy of Marathon—other versions are sold separately—and the system network account must be linked to their Bungie.net account.