A World of Ice and Fire
A hack of the Apocalypse World engine permitting play in George R.R. Martin's intrigue-filled world of Westeros.
Strings are the emotional and physical hold that you have over people. They are earned through a number of moves: curry favour, shut someone down, and various playbook moves. When someone gains a String on you, it means that in some way they've gained emotional, political, or physical power over you.