Arkadia is a Polish free Multi-User Dungeon game set in worlds of The Witcher and Warhammer. Although it is unlicensed, one of its creators collaborated with CD Projekt in creation of The Witcher's world map. At least one of the game's locations, Gwendeith keep, is canon in CD Projekt's The Witcher franchise.

Notable new locations

  • Gwendeith (canonised Aen Seidhe caer)
  • Az'Rhat (barren region in Zerrikania)
    • Val'kare (trading city governed by a figurehead male governor backed by Zerrikanians)
  • Mekan (island near the tropic belonging to Nilfgaardian Empire)
    • Fort
    • Faoilean village
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