Walker (priority HIGH)

 Some npcs walk in group and if they attack something they will once they are done get back together then start walking again, if an npc was killed during that the killed npc will be respawn at the current place they are walking.


Boss engine (priority HIGH)

 On retail some instances have boss patterns Dark Poeta for example, the bettle boss walks from point to point where players have to kill an object to be able to cause damage to the boss.

 This will need a more documented information of how each boss fight etc to messure if any implementation is needed to that given boss.

 Some other instances have same thing, for example Steel Rake the monkey boss during he fight he may get hungry or thirsty when that happens players have to turn on the leaver to either feed or give him water once players activated that leaver it will respawn in a new place inside the room.

 The above were just a few example but each instance or world boss have their own battle system.


Abyss Instance System (priority HIGH)

 Sulfur Treenest, the sulfur instance have an event(not quest related) that triggers once you cross the inside shield when u enter the instance. Until the timer goes off there will be a few chest spawned inside where players can open to get icons and things for rewards, once the timer goes off the chests should disapear.

 Some of the abyss instance have events with timer if not all.


Instance Window and Cooldown registration (priority LOW)

 When a player enter an instance it should register a timer to that given player not allowing him to enter the instance until the cooldown goes off.

 When the player leaves the group while inside the instance it should not be instantly kicked out as there is a safe time before he rejoins a group and continue or is kicked out.

 If the player is still in a group and leave the instance as long as there is a member inside the instance they are still allowed to come back.

 Instance Window Info does not update with what instances you are available to enter and when you are in a group and select an instance it should update if the users in your group can enter or not at the below part of the window.


Quest Engine (priority HIGH)

 Implement as much as possible to handle quest by xmls only


Spawn Engine (priority MEDIUM)

 Some npcs can spawn at X hour and despawn Y hours after, as well as appearing on specific gametime days/hours


Event Engine (priority LOW)

 When times like xmas or summer, etc comes the Event Engine would automaticly activate npcs/quests or when they go off it would automaticly disable them with a configureable file for the period of when they go on and off.