Sorry, this isn't an MMO adaptation of Naughty Dog's Uncharted franchise. Instead, Uncharted Waters Online is Tecmo Koei's long-running online RPG, and it's making its way to America and Europe via CJ Internet. Like Pirates of the Burning Sea, the experience centers around traveling the oceans, trading, exploring and battling on both sea and land.
While Uncharted Waters may be an unfamiliar name Stateside, it's been big enough in Asia to warrant three expansion packs and an online-enabled PS3 port. While CJ Internet is only bringing the PC version to English-speaking audiences, the free-to-play model being adopted should make it an easier sell to the MMO masses.