

Assuming you've ever run the game, simply search for "so.sol" at "%appdata%\Macromedia\Flash Player\#SharedObjects" (you can type this in your run prompt to get there). The "random string" bit is some combination of letters and numbers which is impossible to predict.


%appdata%\Macromedia\Flash Player\#SharedObjects\\localhost\ \Steam\steamapps\common\The Binding Of Isaac\ Serial.txt: Can be found in the game's steam installation folder, something along the lines of bite
