Where Does Marathon Store Settings on PC?
Where Marathon keeps local PC settings, why progress lives on your Bungie account, and how cross-save moves it.
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Marathon keeps almost nothing on your PC. Characters, progress, and gear live on your Bungie account and follow cross-save between linked platforms. The local disk holds client preferences like keybinds and graphics in a prefs folder under a Bungie directory.
That split defines every file operation. Copy cvars.xml to move settings, and use Bungie.net account linking to move everything else. Losing the local file costs an afternoon of rebinding, while losing account access costs the actual characters.
Where Marathon stores this, by platform
%APPDATA%\Bungie\Marathon\prefs\cvars.xml
Client preferences including keybinds and graphics in cvars.xml. Progress and gear are server side on your Bungie account, so this file never backs up characters. Copy it between machines with the game closed for matching setups.
Frequently asked questions
how does Marathon cross-save work
Link every platform account to one Bungie.net profile, and the same Marathon account appears everywhere. Progress and gear follow the Bungie account, not the storefront. Platform accounts cannot be unlinked afterward, so choose carefully.
how do I copy Marathon settings to a new PC
Copy cvars.xml between machines at the same prefs path with the game closed. This carries keybinds, graphics, and audio choices only. Characters and gear stay server side regardless of local files.
settings reset after an update
The local file holds client preferences from testing builds, but the live game may relocate it. Check the Bungie folder first when settings reset after an update. Server-side progress is unaffected by local config wipes.
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