Where is the Witcher game series set?

The Witcher game series (2 video games, 2015 to 2016) is set in no place this atlas can pin: Wikidata records a narrative location for none of them. A game is filmed nowhere, so a place here would be where its story happens, and for these games nobody has written that down yet.

The games

• The Witcher 3: Wild Hunt 2015
• The Witcher 3: Wild Hunt – Blood and Wine 2016