Developer Bungie has announced the delay of Marathon. 

In a post on its website, the studio said that the extraction shooter would no longer be launching on September 23rd. There's no release date as of yet, though Bungie says it plans to share an updated launch window in autumn. 

This follows an alpha playtest that received a very mixed reception. Bungie says it is looking to improve Marathon's survival gameplay, as well as improve its overall world. That's on top of a better social experience. 

"Through every comment and real-time conversation on social media and Discord, your voice has been strong and clear. We've taken this to heart, and we know we need more time to craft Marathon into the game that truly reflects your passion," the studio wrote. 

"After much discussion within our Dev team, we’ve made the decision to delay the September 23rd release.

"The Alpha test created an opportunity for us to calibrate and focus the game on what will make it uniquely compelling—survival under pressure, mystery and lore around every corner, raid-like endgame challenges, and Bungie’s genre-defining FPS combat. 

"We’re using this time to empower the team to create the intense, high-stakes experience that a title like Marathon is built around. This means deepening the relationship between the developers and the game’s most important voices: our players." Bungie delays Marathon