The game currently has around twenty factions you can work with. Each one has its own history, which they will gladly share with adventurers. Factions will suggest diverse quests to heroes, whose favor will increase when they implement them.
There are six favor levels: from amicable to exalted. With new levels, characters unlock opportunities for more favor bonus points, along with various gifts and access to faction items, which include many unique decorative outfits and accessories and useful items. When a hero reaches the maximum favor level, they may be asked to complete a special exam. If they pass they will be rewarded with access to various recipes of the highest order, access to valuable resources and so on. You can select the faction that offers that most appealing rewards. Or even achieve the exalted level amongst them all!