Knight Online most popular games in the genre

Knight Online is an MMORPG developed by MGame Corporation. With over 4.25 million subscribers and 8.91 percent of the current MMORPG market share, Knight Online is among the most popular games in the genre. The original game is hosted by MGame in Korea, and requires players to enter their Korean resident registration numbers to register. There are two other official versions: Knight Online Xross (usually called "JPKO") is hosted in Japan, while Knight Online World is hosted in the United States. Some people refer to Knight Online World as USKO. Both of these versions accept registration from any location. The Knight Online World version is popular in Turkey, and players from this country are an overwhelming majority in that version, which means it's hard to find a player speaking another language. Knight Online is officially free-to-play (although to connect to the utmost of the servers during prime time, paid premium is required), but there are some features that must be paid for. In addition, there is an in-game Powerup Shop or Store which contains various items that one can purchase such as premium packages. Paid services include exclusive items and Premiums which are a limited-time subscription providing many benefit.

To advance in the game, the player must collect experience points to gain levels and items that boost the stats of the character. The monsters that inhabit the game world can be attacked using melee attacks or skills. Once a monster is killed, the killing player gains experience points and the monster leaves behind a loot box which may contain Noahs (in-game currency) and other items. The drop box is only accessible to the player or party that did the most damage to the monster. However, in case of kill stealing, the experience is divided according to the amount of damage done.

There are many quests in the game. These may require the player to kill a certain amount of a monster or to collect certain items (quest items). The squire will warn the player about any quests that may be completed at the current level. Quests are given out by certain NPCs who are usually found in towns. The reward for the quests may include experience, Noahs, weapons and armor, or even the ability to use certain skills. Players are encouraged to be patient with collection of the reward because as they level up it becomes more difficult to accumulate experience.

Players lose experience if they die from a monster. The amount lost depends on the character's level and it's also possible to lose a level upon losing experience. However, a death that results in a loss of a level will not allow the player to complete quests of the lower level.

When leveling up, the players gain stat points which can be distributed into Strength, Health, Dexterity, Intelligence and Magic Power stats. Levels 2~60 will give the player 3 stat points, while level 61 and beyond will give 5. Starting at level 10, two Skill Points are also awarded for each level. Characters may undergo the first job change at level 10 and the second job change at level 60. The job changes unlock new skills for the character, depending on its class.

Most items can be traded between players. The game's merchant feature allows the player to set up a kiosk to sell or buy items for Noahs. If a player has enough Noahs or the item sought for, he can enter the kiosk and perform the exchange. The transaction is done automatically, so the merchant doesn't have to be at the computer when the item is sold or bought. Bartering is also permissible using the trading option. This allows two players to exchange multiple items and/or Noahs between each other. Since a player can't hold more than 2.1 billion Noahs, players often exchange several items for a very valuable item. Each server has specific economies and equilibrium point for most valuable items.