Nightingale

You are stranded beyond our world, cut off by the collapse of the arcane portal
network. This catastrophe has left you fighting to survive in a labyrinth of beautiful and dangerous Fae realms.
Your goal: become a skilled Realmwalker, and navigate the web of transdimensional portals. Only then can you discover your way to the magical city of Nightingale, the last known bastion of humanity.