Several games handle their world composition differently. Games like EverQuest, Anarchy Online and Final Fantasy XI are composed of regional zones. Transition from one part of the world to the next requires a process known to players as zoning, where data is effectively loaded for that one particular "zone". As a result of zoning, monsters can not follow players into the next zone. In addition, immersion of the game is broken during this waiting period.
Other games decide to make their world continuous (or "seamless"). Games like Asheron's Call, Ultima Online, World of Warcraft, and The Matrix Online make it possible to travel from one point of the gaming world to the other without the transition of zones, although in many of these games certain cases (e.g. going into a dungeon, travelling to different continents) exist where you must go through a loading period.
Both have their technical limitations, mostly in regard to memory requirements for the game client, bandwidth usage by the client computer, as well as how the world is managed by the game servers.
Zamorak
Zamorak is a fictional deity from the game RuneScape. Zamorak is the God of chaos and war. Zamorak was the second main participant in the God wars. Though he did not shape the world as Saradomin did, Zamorak had corrupted many parts of the would-be orderly world Saradomin envisioned with taints of evil, especially in human nature and such.
Zamorak was not always a god but was once mortal. To how he became a god was once a closly guarded secret it is now been found out by talking to ghosts from the era. He used to be the head general of the great god Zaros against the minor deities who had risen aginst him (including saradomin) until he and some of his close followes decided to rebel. Using the god staff of armydayl Zamorak was able to stab Zaros in the back with it whilst his close followers (including Hazeel, Draken, zemouregal and others who can be found in the modern era) fought off Zaros's body guards. When Zaros had the staff imbedd in his back his power was weakened so greatly that the greatest of all gods was now on an equal field with mortals and so zamorak fought him.
Even though Zamorak was the strongest mortal of all time and Zaros in his weakened state Zaros was still able to best Zamorak but as Zaros him in his grasp ready to deliver the death blow Zamorak gave a mighty kick to him causing him to lose his footing and send the staff of Armydayl which was previously only just barley in his skin to impale him and Zamorak. From this however some of Zaros's diviity was transfered to Zamorak and he became a god while Zaros was forced into another dimension.
The Zamorakian symbol is similar to an up-side-down (T) . Zamorak is portrayed as a larger figure with a red tint in his face and horns resembling Satan and other demons of the Judeo-Christian religion. Though not as famous among humans, Zamorak holds many cults of them through RuneScape in addition to his ability to raise beings from the dead to add to his armies and most formidable his demons and dragons. Though not as common as altars to Saradomin, chaos altars are still a relatively common sight in the RuneScape world. There is a Chaos Temple north of Falador on the boarder of the wilderness. In this small temple, evil monks guard the sacred Wine of Zamorak which is used in the herblore skill. There is also a church dedicated to Zamorak in Varrock, despite it being a heavily Saradominist city. Zamorak's territory is mainly in the former battlefields of the God wars now known as the wilderness.
It could be considered that Zamorak also controls the lands to the east of the river Salve as there is a much greater proportion of his followers here made up of werewolves and vampires. However this can be arguable as many Saradominists have managed to make settlements in Morytania (Port Phasmatys has grown so prosperous it manages to conduct heavy trade with the peoples of the east) even though these settlements often befall disaster due to Zamorakian intolerance. In the mage arena one can learn the spell flames of zamorak which sets flames to the enemy. Zamorak almost never uses an older english like Saradomin sometimes does and Guthix always does but rarely one will see him refer to himself in a pretense.
Zamorak's main source of entertainment is death even from his own followers and forgiveness is not a trait associated with this deity.