Uncharted Waters Online, referred to as Great Voyage Online in Japan (Daikōkai Jidai Online), is a MMORPG developed by KOEI based on the Rekoeition Uncharted Waters series of games. Set in the Age of Exploration players act as adventurers, soldiers, or traders, and engage in combat, exploration, and trade within the game.
Uncharted Waters Online is currently only available on the Windows platform in Japanese, Korean, traditional Chinese, and simplified Chinese, also available on the PlayStation 3 since 2009. Koei Co. has only made reference to an eventual Western release mentioning "the development of the major Asian markets, each in turn throughout the continent, and will take the route towards the European and North American market". The U.S. branch of Koei has only mentioned that a North American release is "To Be Determined" as part of their 2006 E3 announcement. Contrarily, KOEI made no mention of a Western release in their 1st quarter plan for 2007 only highlighting the simplified Chinese release. However, six years after the initial release, Net Marble will produce the game, under its traditional English title, for the non-Asian market in North America and Europe. At 19 August 2010 official site for English and US game versions was opened  and closed beta was announced. UWO CBT coming August 25, game client will be available for download at Aug 20th 15:00 [GMT +9].
Uncharted Waters Online is set within several timelines during the Age of Exploration as a romantic and historic fictional account of the era. Inconsistencies are found in the presence of Christopher Columbus and Elizabeth I of England as well as in some quests. However despite some of these timeline inaccuracies the game offers educational content in the form of exploration. Players can discover quests with historical value such as learning about Greek Fire or Seals.
As an online game it offers Player vs Player combat areas and factional warfare as well as socialization in the form of in-game chat and card games.
Uncharted Waters Online features a variety of gameplay. The game can be divided into sea-based areas, land-based areas, and towns. Like most MMORPGs characters gain experience in skills and levels.
The player may choose from among 6 nationalities: England, Dutch Republic, Ancien Régime in France, Spanish Empire, Kingdom of Portugal, Republic of Venice. As well the player may choose from several "occupations" after choosing a basic class: adventurer, merchant, and soldier. However players can learn and upgrade skills from other classes, albeit needing more experience points. Under certain conditions a player may change their class, occupation, and nationality. Players are able to trade, explore, battle and join in live events such as "Great Sea Fights".
Uncharted Waters Online also includes event storylines for each of the nationalities adding single player depth to a multiplayer environment. Each nation's storyline revolves around a protagonist and their journey much like in previous games of the series. The following contains a translation from the Beginner's Guide as well as basic character information.
Portugal is a mercantile nation that prospers by trade from profits of the land facing the Atlantic Ocean. They quickly rode the advances of navigation, and were the first to round the Cape of Good Hope. Recently, after returning from the discovery of the Indian route, and fiercely compete with their neighbor, Spain.
- Alvero Sarmiento (17) - A trader plying the marketplaces near Portugal. He is a leader among boys his age, and his smile endears himself towards people.
- Diego Sarmiento (42) - The head of the Sarmiento Company, a major company representing Portugal.
- Juan (10) - A boy who accompanies Alvero on his journeys.
- Vasco da Gama (28) - Portuguese naval officer born to a noble house. He became a national hero by discovering the Indian route.
- Sanjai (18) - Indian spice trader.
Spain is a powerful authoritarian kingdom dominated by the royal house of Habsburg. The Habsburgs' rise to the royal throne came because of the premature death of the late king's son. Spain came into possession of the Netherlands which is the territory of the current royal family.
In order to support the country's finances the Netherlands have been taxed heavily, and as a consequences has raised support for their independence movement in recent years.
- Baltasar Oliveira (38) - Captain of the mercenary fleet working for Spain. He lives to hunt down the leader of the Barbary pirates - Khair ad Din. He is the leader of the Black Orca fleet.
- Eduardo de Mascareñas (20) - The newest captain of the Black Orca fleet. He was born into just a normal house instead of the famed Hidalgo class. In order to fulfill his dream of promotion to a hidalgo he joins with Baltasar.
- Augustino (39) - An officer originally from an artisan family in the heart of Italy.
- Barbarossa Khair ad Din (38) - Leader of the Barbary pirates. He sails out into the Mediterranean from his base of operations in Algeria.
- Irene (29) - The barmaid at Marseilles. Sophisticated and "high-maintenance" she is known as an "adult woman" who is chased after by many adventurers.
England is a small island country to the north for whom wool is the key industry. However, the wool market became unstable because of the Spanish political meddling in the Netherlands, which is England's biggest trading partner. The wool trade decreased, and a heavy recession ensued. The Queen wishes to repair the situation, but there is no method to compete with powerful Spain.
- Liza Middleton (21) - An English naval officer from the former pirate Middleton house. She has gained notoriety for her courage.
- Gordon (40) - A veteran crewman who has served the Middleton house for more than 14 years. He runs around trying to protect Liza.
- William Middleton (29) - The family head of the Middleton house who was pirating 10 years earlier. He has passed on naval activities to his sister. He maintains friendly relations with the courier Fredrik nowadays.
- Count Kilingrew, a transliteration of キリングリュー伯爵 (45) - The chief vassal who serves the English Royal Family. He treats the navy as his personal property.
- McGregor (35) - A pirate who stood out after he had beaten the Middleton family.
The Netherlands is a rising maritime courier nation facing the North Sea. They are a producer of wool fabric. The main Habsburg territory of the Netherlands became Spanish territory by inheritance of the Spanish king. The Spanish political meddling awoke the independence movement, but the military strength of the House of Alba prevents the movement.
- Fredrik Van Metteren (24) - Specializing in the transport of 'dangerous' goods and naturally independent.
- Egmont (25) - A nobleman representative to the Netherlands government. Recently he has been trying to increase monetary support from other nations for the independence movement.
- Hoorn (28) - A revolutionary of commoner origins.
- Amalia (18) - A towngirl liked by many who lives in Amsterdam. She appears to be a normal beautiful girl, but...
- Ines (25) - The trusted retainer of the House of Alba, who indirectly rule the Netherlands, and is a female officer of the Spanish navy.
France is an agrarian kingdom holding territory from the Mediterranean to the North Sea. France is surrounded by strong ocean-faring countries, and its seafaring business was delayed because of a long line of monarchs who were obsessed with themselves. The half-century delayed Renaissance starts from the Italian peninsula, and there are many nobles who collect rare treasures and artifacts.
- Julien Clarence (23) - A quiet man who belongs to a treasure hunting family who holds the patronage of many nobles. He has excellent eyes in regards to art.
- Countess DuBois (42) - The wife of a count in Marseilles who holds lots of power. She has a proud and sadistic demeanor. She makes servants out of those who are unable to pay for services.
- Augustine (39) - A one-eyed priest who recently came to Marseilles.
- France's Queen Mother (48) - The Queen Mother who holds real governmental power in France in place of the young King. At 17 she was married from the Medici family in Firenze, and after a while the king died.
- Ogun (20) - A warrior who travels the continent of Africa. He knows the spirit of animals and how to survive.
Venice is a small city-state floating on the sea. It is called the "City of Water". Venice's maritime industry had long been prosperous, and Venice had long held a monopoly on the profits of the Mediterranean trade on pepper from Alexandria. However, recently the Ottoman Empire appeared in the East and Portugal discovered a sea route to the Indies.
"La Frontera" is the first expansion pack for Uncharted Waters Online released in 3 installments the first of which is titled "Aztec" on August 30, 2006. This extends the Age of Exploration from the early 16th century into the 17th century with new areas in South America & North America. The second chapter of the expansion titled "Angkor" was released December 6 2006 expanding the world map through Southeast Asia. The third chapter of the expansion titled "Spice Islands" will continue to expand the world map throughout Southeast Asia.
Apart from new storyline the expansion includes "pirate islands" for irreputable players, "debates" using discovery card battles for adventurers' bragging rights, "joint built shipwrightery" for craftsmen, duels in towns, housing for all players, and a commissioned ferry service between large cities. The expansion will also include interactive towns that players can change from being a Merchant, Adventurer, or Navy town.
In further developer announcements  , KOEI announced that the land battle system will be overhauled into a "Ranged-Shift Battle" system where players will choose from short, mid, and long-ranged combat positions with strengths and weaknesses. As well, 3 combat classes will be released to enhance land combat-oriented players. New "Imperial Quests" will allow players to run quests pertaining to a specific country.
The expansion pack will be cost an additional fee for current subscribers to be released both as a download and expansion box set like the original game. New subscribers purchasing "La Frontera" includes access to the original setting. The subscription price has not changed.
Cruz del Sur
The second expansion pack titled "Cruz del Sur" will be released late summer 2007. As with the first expansion pack, "La Frontera", this second expansion will also include 3 chapters the first of which is entitled "Circumnavigation". Also similar to the expansion pack system users must pay an additional fee (2940 yen) to download the expansion.
The first chapter (Circumnavigation) of this expansion opens the Southwestern Pacific Ocean up to players to explore and adds in "private farms" while trying to add in more flavorful player-vs-player combat.
The second chapter (Special Ornaments) opens the special ornaments in players' flat and allows players to have a pet.
The third chapter (Grand Anniversary) and the fourth chapter (Inca) have been released.
The fifth chapter (Menace Of Ottoman) enabled players to be part of Ottoman by contract.
The extra chapter (Expedition) added new ports and fields in pacific region.
The third expansion pack 'El Oriente' will be released December 2009. The new expansion opened 4 east Asian countries: Japan, Taiwan, Korea, and China. Unlike previous chapters, the first chapter will be released respective to the countries the game is being hosted, which changes order of chapters depending on the countries players play at.
The chapter (Zipang) opens new ports and fields in Japan.
The chapter (Ilha Formosa) opens new ports and fields in Taiwan.
The chapter (The Morning Calm) opens new ports and fields in Korea.
The Japanese version of Uncharted Waters Online offers mobile-to-game mail service for I-Mode, EZweb, or Vodafone Live! capable mobile phones. This service will be beta tested until August 30, 2006.
- ↑ 1.0 1.1 Spencer (2008-11-10). Siliconera - Koei Porting PC Marine MMO To PS3. Siliconera. Retrieved on 2008-11-11.
- ↑ http://www.koei.co.jp/flash/press/pdfs/20060601.pdf
- ↑ http://www.koei.co.jp/flash/financial/pdfs/20061121_2.pdf
- ↑ http://global.netmarble.com/about/news/content.asp?seq=426
- ↑ http://global.netmarble.com/uwo/main.asp
- ↑ http://www.gamecity.ne.jp/dol/start/biginner/
- ↑ http://www.gamecity.ne.jp/dol/lafrontera/news.htm
- ↑ http://www.gamecity.ne.jp/dol/topics/0606012.htm
- ↑ 
- ↑ 
- ↑ http://www.gamecity.ne.jp/dol/lafrontera/aztec4.htm
- ↑ http://www.gamecity.ne.jp/dol/ep3/report1.htm
- ↑ http://www.gamecity.ne.jp/dol/mobile/