Marathon Symbiosis: Open Play Week and Crew Up Event
- Published
- (yesterday)
- Type
- News
- Build
26136895→26462907- Source
- store.steampowered.com

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Summary
The evolution of Marathon starts on December 8 with the launch of our next update, Symbiosis, which will bring a plethora of updates and changes to our game, including phase one of our permanent PvE game mode. So, in order for everyone to have a chance to experience first-hand how Marathon has grown and improved, we are opening the game to everyone during our Open Play Week.
Let's talk about it!
Everyone Can Play During Open Play Week
Just like we did at the start of Season 2, we want everyone to experience the new content coming to Marathon. It will be the perfect time to invite your friends not only to try the game, but to also help you get some Crew Up rewards.
During the Open Play Week from December 8 until December 15, players will be able to access and experience everything Symbiosis has to offer, including the new Expedition PvE game mode, the new Bishop shell, the updated Perimeter map, and all the new gear and rewards. If you choose to purchase Marathon after Open Play Week is over, you will keep all the items and progression unlocked.
Crew Up Event: Play Together, Win Together
Crew Up is an event with a clear goal: form a team with your friends and explore Tau Ceti IV with a more collaborative mindset in the new Expedition PvE game mode. The reward: all the gear you can get on your runs, plus some unique cosmetics on top.
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Read the full news on store.steampowered.com →
Excerpt – the full text belongs to the publisher.
More Marathon patch notes
- Marathon Update 1.1.9.7 2026-11-10
- Marathon Update 1.1.9.6 2026-10-27
- Marathon Update 1.1.9.5 2026-10-20
- Marathon Update 1.1.9.4 2026-10-13
- Marathon Update 1.1.9.3 2026-10-08
- Marathon: Nightfall Refresh and Symbiosis Roadmap 2026-10-06
- Marathon Update 1.1.9.2 2026-10-06
- The Future of Marathon 2026-09-24
