RPG? It's easy we will do something like Baldur Gates! (but better)

Well, I heard a lot of sentences like title of this post. Probably in every game forum, some young programmers are searching for team members to finish some epic RPG project. Well before you start this, maybe you will be interested in scale of dialogues with NPC. Below one picture which is tree of dialogue with one NPC in firstof episode... About 3.5 hour of continuous work. So only 14 other NPC left to finish first chapter...

BTW.
If you are interested in polish history, and some materials which help me while creating my game here is link and another one.