These saves have everything completed: main story, side missions, challenge maps, and collectibles. Some even include all concept art unlocked. For example, one popular 100% save includes both Normal and Hard difficulty completions, all challenge maps with triple gold medals, and all character trophies unlocked. Another 100% save claims the main game and challenges were 100% completed with costumes and trophies unlocked.
Repacking Batman Arkham Origins save files is a relatively straightforward process. Here are the steps: batman arkham origins save file repack
<Game Installation Directory>\SinglePlayer\Binaries\Win32\Profile\Saves\ These saves have everything completed: main story, side
Some repack versions store saves directly in the game folder: Another 100% save claims the main game and
Only download save files from reputable sources. Check community comments and feedback. Be especially wary of small executable files masquerading as save files— .sgd files are safe, but always scan with antivirus software.