We have recently made a number of updates to the Editor to support more varied mods. Modders now have full access to the scripted event system - we'd love for you to try this out and let us know if it works for you. Editing events can get pretty complicated and any feedback on making it easier would be much appreciated. We have also added 2 new features - the ability to set which nations are playable in your mod and the ability to set nation specific victory conditions. Used together these can allow different kinds of mods, such as ones focused on a single nation achieving a goal in a limited time frame, or a 2 player mod targeted at multiplayer between specific nations. We have posted an example mod on Steam Workshop called "For the Glory of Byzantium!". You play as Greece and have 20 turns to take and hold Constantinople. Give it a try and tell us what you think!