Twelve Sky , often referred to as 12 Sky , is a massively multiplayer online role-playing game (MMORPG). It is Korean developer Alt1 ‘s first released game set in the Oriental Fantasy universe launched in its home market in 2004.  Aeria Games announced Twelve Closed Sky Beta on September 5, 2007.  The Closed Beta was set to date be on September 18, 2007.  Twelve Sky then went into Open Beta on October 12, 2007.  AeriaGames announced the closing of the game on April 6 on their forums. The game officially closed on April 30, 2010 with their item mall closing on April 13, 2010. 
Starting A Character or a Play Session
As with other MMORPGs, players control a character avatar Within a game world, exploring the landscape, fighting monsters, Completing quests and interacting with NPCs or other players. Twelve Sky does not require the player to pay for a subscription.
Each player can have 3 characters on a single account, with multiple accounts possible. To enter the game, the player must select a server . Each server acts as an individual copy of the game world and players can enter them freely with any character. Servers are all Player Versatile Player (PvP) where all players of Player vs. environment (PvE) are playing . On any server a player may create characters to a single faction; Guanyin , Fujin or Jinong on any single account. 
To create a new character players must choose between the factions of Guanyin , Fujin or Jinong . Characters from the factions can only share their faction and form guilds with their faction. The player selects Guanyin, Fujin or Jinong. Player can also choose gender and color / style and their avatar’s name. Each faction has a unique appearance and set of skills to play and play on their own.
Once the character has been created, it is placed in the world of Twelve and can immediately engage in Player versus Environment battles. The player may engage in Player versus Player battles in certain areas. Creatures in the world drop items or money that can be exchanged for goods.
As the player gains levels, they receive stats which can be used to upgrade the stats: Strength, Dexterity, Vitality and Chi. Characters may also form or join guilds. Characters in the same guild have a private chat channel, a shared guild name, guild storage and possibly battle in duels.
Much Twelve Sky play involves questing . These quests, also called tasks or missions, are usually available from non-player characters (NPCs). Quests usually reward the player with experience points or items. It is also questionable that much of the game’s story is told. Some quests are linked by a common theme, with the next quest triggered by the completion of the preceding, forming a quest chain . With a number of creatures, finding a difficult to locate object, speaking to various NPCs,
While a character can be played on its own, In this way, character classes are used in specific roles within a group. When a character dies, it resurrects in the most recent “safe” location as a re-spawn point. When a character dies to a monster, there is a possibility of dropping items the player has equipped, allowing retrieval of lost equipment.
Twelve Sky contains a variety of mechanisms for Player Versus Player (PvP) combat. Each server allows player versus player combat in certain environments. In these environments, players can attack each other at almost any time or location. There are special areas of the world where free-for-all combat is permitted. Battle arenas, for example, allow all players to engage each other without fear of penalty or loss of rank.
Twelve Sky is a Massively Multiplayer Online Role Playing Game . It takes place in a 3D-representation of the world of Middle Ages China that players can interact with through their characters. The game features three main homelands, one for each faction. In this game world, players use their characters to explore locations, defeat creatures and complete quests, among other such activities. By doing this, the characters gain experience points. After a set amount of experience has been gained, a character gains a level and new stat points, opening up the option of learning new skills and using new items, exploring new areas and attempting new quests. Although the game world is reasonably similar to day to day, the weather has changed, snow and storms.
A number of facilities are available in cities and towns. In each major city characters can access a warehouse in order to deposit items, such as treasure or crafted items. Each warehouse is unique to that character, with players able to purchase additional storage space. In the major cities of Twelve Sky, players can expect to see hosted player booths.
Some of the harder challenges in Twelve Sky require players to group together to Complete Them. These usually take place in other countries and other difficult areas. This allows players to explore the areas and complete the questions with other players outside the group.
Twelve Sky Was first released in Korea by GigasSoft, 2004. It has since then expanded to China and now Japan and North America.  The game was designed to be an open environment where players are allowed to do what they please. Quests are optional and are designed to help players, allow character development, and to spread characters across different areas to try to avoid what developers call ‘collision player’. The game interface allows players to customize the appearance and controls and other modifications.
ALT1 distributes Sky Twelve in the following countries: Korea, China. 
Closing of the AeriaGames Version
Aeria Games, the publisher of the English version of Twelve Sky, announced the closing of the game on April 6, 2010 on their forums, and officially closed the game on April 30, with their item mall closing on April 13. 
Gigassoft was established at 8 December 2002 by CEO Changwoo-Hong and 15 employees. Now, Gigassoft is grown up with 75 employees. We developed the Twelvesky with G3D game engine (based on the Open GL) which was developed by CEO Changwoo-Hong. We developed the next generation of GXD based on Twelvesky So the Twelvesky was updated. We are developing the Fusion Fantasy MMORPG which is focused on the battle system and developing the Casual game genre so we will have various game. 
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- Jump up^ “Aeria Games Celebrations Twelve Sky CB” .
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- ^ Jump up to:a b “Closing of the Aeria Games Version” . Aeria Games and Entertainment . Retrieved 2010-04-17 .
- Jump up^ http://12-sky.aeriagames.com/guide/factions
- Jump up^ “Twelve Sky Download Page” . Aeria Games and Entertainment . Retrieved 2009-01-29 .
- Jump up^ http://www.gtrade.or.kr/buyer/company/gigassoft.do?member_id=gigassoft