Overgrowth Setting Writedir
Setting the write dir on Windows Steam
To change your write dir on Windows and Steam to be something else than the default in C:\User\<name>\My Documents\Wolfire\Overgrowth perform the following steps.
1. Start Steam 2. Right click Overgrowth, select Properties 3. Click "Set Launch Options" 4. Enter the following: --write-dir C:\OvergrowthData
The path can be changed to pretty much anything, but should be limited to shorter paths to not overextend windows older 512 character path limit.