Check the install size of the Marathon pre-load for PC, PS5, and Xbox. Marathon pre-loads are live and players would do well to check their storage setups. The installation size for the game is quite surprising, though players on PC may need to account for slightly higher requirements during the initial download. Marathon pre-load is available on March 3, 2026 after 10:00 a.m. PT / 1:00 p.m. ET on Steam, PlayStation, and Xbox Series X/S. You will need to navigate to the game’s store page and select the preload option. Players with auto-update/download should already have it installed. Preload to ensure you’re ready for when the Marathon’s release time rolls around. The Marathon install size varies based on platform, and even then, the pre-load size can be different. For example, on Steam, my download size was 18.26 GB. Here’s a table showing the file size and the storage space you need to install: PlayStation 5 Xbox Series X|S Steam Bungie notes that for PC, almost double the storage space is required to preload and decrypt the files. Now that the Marathon pre-load time is here, ensure you have enough space and get the game installed. By doing this before launch, you can have a smoother experience. Check out our Marathon page for more on Bungie’s extraction shooter.
Marathon pre-load time
Marathon install size
Platform
Marathon file size
Storage space needed for installation
23.27 GB
23.27 GB
24.60 GB
24.60 GB
25.30 GB
~52.00 GB
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