Podfic of Game Theory by not_poignant, as posted on ao3.
Summary: Six months have passed since Gwyn ap Nudd, King of the Seelie fae, has defeated the King of the Unseelie, fae waterhorse Augus Each Uisge. Remembering their first encounter, decades ago, Gwyn cannot bring himself to execute Augus, and has instead kept him prisoner in a cell in the depths of the Seelie Court. In a difficult position himself, ruling an unwanted throne and waiting out the years between until the time he can step down as King, Gwyn finds himself unable to stay away.
Link to original work: http://archiveofourown.org/works/915296
Licence : All Rights Reserved