Dragon Quest X: Rise of the Five Tribes Online

Dragon Quest X: Rise of the Five Tribes Online, also known as Dragon Quest X Online, is a 2012 massively multiplayer online role-playing game (MMORPG) by Square Enix. It is the tenth mainline entry in the Dragon Quest series. It was originally released for the Wii and was later ported to the Windows in 2013. Other than a discontinued Windows version in China, the game has not been released outside of Japan.

Dragon Quest X is set in the world of Astoltia, with the player character being initially human before an attack by Nelgel the Netherlord which he forces their soul into the body of another race. Following this, they must gather magical gems to seal Nelgel once again, while the player character's sibling is sent back in time to be safe from Nelgel. Gameplay follows a combination of elements from the Dragon Quest and other contemporary MMORPGs, such as real-time combat in an open world environment and a job system tied to skills and abilities.

Critical reception to the game has been generally positive, with praise going to its integrating of Dragon Quest features into an MMORPG structure. The game has since received several expansion packs and other updates. By 2014, the game had sold over one million copies.