Bethesda games and mods‚ mods and Bethesda games. These two forces are inextricably linked‚ having enjoyed a powerful symbiotic relationship dating back to at least The Elder Scrolls 3: Morrowind in 2001‚ which was the first of Bethesda’s games to enjoy a huge modding community that persists all the way to this day (and with the whole game now ported to an open-source engine by modders‚ OpenMW‚ the possibilities are pretty much endless‚ to the point of the game getting a largely functional multiplayer mode).