Save File Location (Windows / Linux)

[ABOhiccups]

If you want to backup your Save File. Here you go!

Windows:
C:\Users\<USERNAME>\AppData\LocalLow\ScrewAttackGames\AVGN2\playerInfo.dat

Mac:
/Users/<USERNAME>/Library/Application Support/unity.ScrewAttackGames.AVGN2/playerInfo.dat

Linux:
/home/<USERNAME>/.config/unity3d/ScrewAttackGames/AVGN2/playerInfo.dat

[Azora Husky]

Here is the Mac OS X file location:
/Users/<USERNAME>/Library/Application Support/unity.ScrewAttackGames.AVGN2/playerInfo.dat
(You can also type this into the "Go to Folder" option under the "Go" tab in Finder)