Paths

Configuration files & Log files

 * Linux: $HOME/.config/openmw
 * Windows: C:\Users\Username\Documents\my games\openmw (username, drive and language may vary)
 * Mac: $HOME/Library/Preferences/openmw

Savegames

 * Linux: $HOME/.local/share/openmw/saves
 * Windows: C:\Users\Username\Documents\my games\openmw\saves (username, drive and language may vary)
 * Mac (OpenMW 0.36 and later): "$HOME/Library/Application Support/openmw/saves"
 * Mac (OpenMW 0.35.1 and earlier): $HOME/Library/Preferences/openmw/saves

Screenshots

 * Linux: $HOME/.local/share/openmw
 * Windows: C:\Users\Username\Documents\my games\openmw (username, drive and language may vary)
 * Mac (OpenMW 0.36 and later): "$HOME/Library/Application Support/openmw"
 * Mac (OpenMW 0.35.1 and earlier): $HOME/Library/Preferences/openmw

OpenMW-CS mods

 * Linux: $HOME/.local/share/openmw/data
 * Windows: C:\Users\Username\Documents\my games\openmw\saves (username, drive and language may vary)
 * Mac (OpenMW 0.36 and later): "$HOME/Library/Application Support/openmw/data"
 * Mac (OpenMW 0.35.1 and earlier): $HOME/Library/Preferences/openmw/data