It features over a hundred different sailing ships and an open world based on real Earth geography, with players engage in many activities such as combat, exploration, and trade on both sea and land while interacting with each other.

It is developed by KOEI based on the Uncharted Waters series of games, and originally released in Japan.

Six years after the initial Asian release, Netmarble published the game, under its traditional English title, for the non-Asian market in North America and Europe.

Player combat areas and factional warfare as well as socialization in the form of in-game chat and card games.

Uncharted Waters Online is set within several timelines during the Age of Exploration as a romantic and historic fictional account of the era.

Despite some of these timeline inaccuracies, the game offers educational content in the form of exploration of geography and culture.

Players can discover quests with historical value such as learning about the economic decline of Venice, or the rise of England as a naval power.

Uncharted Waters Online also includes event storylines for each of the nationalities adding single player depth to a multiplayer environment.

However, the wool market became unstable because of the Spanish political meddling in the Netherlands, which is England's biggest trading partner.

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.

The Japanese version of Uncharted Waters Online offers mobile-to-game mail service for I-Mode, EZweb, or Vodafone Live!

"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.

[15] The second chapter of the expansion titled "Angkor" was released on December 6, 2006, expanding the world map through Southeast Asia.

The third chapter of the expansion titled "Spice Islands" continues 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.

Tierra Americana was released in the US version and introduces two new cities: Paris and Firenze ( Florence ), and also includes the possibility of colony founding by companies.