Where Are BioShock Infinite Save Files Located?
BioShock Infinite hides saves in Steam userdata, with its graphics config under the Documents My Games folder.
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BioShock Infinite keeps saves in userdata\<SteamID>\8870\remote\SaveData as .sav files paired with .bkm markers. There is no in-game save menu with slots; the single autosave chain is all you get. Graphics settings live separately in Documents\My Games\BioShock Infinite.
Restoring backups demands discipline. Steam Cloud must be off in both the game options and the Steam client, or the cloud copy stomps your restored files on launch. Copy the whole 8870 folder out, not single files, since the .sav and .bkm pair must match.
Where BioShock Infinite stores this, by platform
<Steam>\userdata\<SteamID>\8870\remote\SaveData
Single autosave chain (.sav + .bkm) under app 8870. Config in Documents My Games separately. Turn cloud off in game AND Steam before restoring, or sync overwrites the restore.
Frequently asked questions
How do I keep multiple BioShock Infinite playthroughs?
You cannot through normal play. The game keeps one autosave chain, so manual backups mean copying the remote folder out after each session. Disable cloud in both game and Steam first, or sync overwrites your archive.
The game crashes on launch. What should I delete?
Delete XuserOptions in Documents\My Games\BioShock Infinite\XGame\Config and relaunch. The game rebuilds the file with safe defaults, which clears most startup crashes without touching saves.
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