It’s fascinating how things can change between a novel and a TV show or movie . . . and of course, a video game. Sometimes the iconic images for a story don’t come from the original vision of the creator. When stories get big enough to become transmedia, they inevitably add new creative visions to the mix. The image of the Iron Throne from George R.R. Martin’s A Song of Ice and Fire series is seared into the minds of the viewers of HBO’s hit show Game of Thrones. Yet that’s not at all how Martin himself envisions the Iron Throne.
Martin’s view of the throne is forged from the swords surrendered to King Aegon Targaryen by his enemies. The Iron Throne is cruel and often cuts those who sit in it, and it said to have caused the deaths of several people. Looking at Martin’s vision of the Iron Throne, you can see how it could hurt or even kill those rash enough to sit on it.
Source: Wiki of Ice and Fire