OpenMW is a recreation of the engine for the popular role-playing game Morrowind by Bethesda Softworks. You need to own and install the original game for OpenMW to work.
OpenMW is a open-source game engine that supports playing Morrowind by Bethesda Softworks. You need to own and install the original game for OpenMW to work.
OpenMW also comes with OpenMW-CS, a replacement for Morrowind's TES Construction Set.