As erbkaiser has said, it adds opinion modifiers to vassals depending on what level of each law is at, according to the descriptions of each group; i.e. feudal vassals would rather pay more taxes than provide more troops so changing the law to go with that notion would increase their opinion of you as to going against that would decrease their opinion of you. City vassals would rather provide more troops and temple vassals would rather provide a mix between the two. While there is already a modifier that deals with a change in obligation laws, those modifiers went away once the ruler at the time of the law change was no longer ruler. Essentially, I could end up with max troops and taxes provided with no negative opinion about it. So this mod makes it so there is a permanent opinion modifier attached to the laws. I had a thread for it on the old site; will make a new thread for it shortly.
Steam Workshop mod 'The Great Trade League' by Maal is compatible with AGOT: steamcommunity.com/sharedfiles/filedetails/?id=920653668 It adds a new society to the game that focuses on trade. Fun fact: Littlefinger always seems to become the AI leader of the society in my games that start at or around the ACOK scenario.
'A Game of Thrones' is a user modification for Crusader Kings II not affiliated in anyway with Paradox Interactive or the rights holders to 'Game of Thrones' and 'A Song of Ice and Fire'.
This modification and it's team takes no income or profit, whether it be through donations, advertisements or any other form of revenue.