Duo queue in Marathon has been a moving target. Rather than shipping a permanent two-player playlist out of the gate, the team ran duos as a limited experiment, watched how it played, and then closed it out. If you tried to jump into a duos game and could not find the option, that is why. The test is finished, and a full version is being lined up for a later season.
What the duos experiment in Marathon was
The duos queue let two players team up together instead of dropping in alone or as part of a larger group. It was set up as a trial, not a finished feature, so it could be turned on, measured, and then switched off once the studio had enough data.
That framing matters. An experiment is meant to answer questions, like how matchmaking holds up with pairs, how balance shifts, and whether the queue stays healthy. Once those questions were answered, the trial had served its purpose and was brought to a close.
Current status: the experiment has ended
Game director Joe Ziegler confirmed that the duos experiment is wrapping up and that the team collected a large amount of useful information from it. He also thanked the players who took part and helped the studio learn how duos behave in live matches.
So as things stand, the temporary duos playlist is no longer the way to pair up. The data gathered during the test is now feeding directly into how a proper duos mode gets built.
What to expect for duos in Season 2
The plan is to finalize duos for Season 2. The studio is treating the experiment as the groundwork, which means the eventual mode is meant to reflect what worked and fix what did not during the trial.
No official launch date or time for the Season 2 duos mode has been shared, so there is no countdown to point to yet. The only firm commitment is that duos are being shaped into a finished feature rather than left as a one-off test.
How you'll know duos are back
When a finalized duos mode goes live, it will show up as a selectable queue or party option inside Marathon rather than as a temporary event. Until that appears in the game's playlist menu, the experiment remains closed, and any pairing relies on whatever standard grouping options the current build offers.
For now, the takeaway is simple. The duos queue was a deliberate test; it has run its course, and the work it produced is being pointed straight at a Season 2 release.