Knight Online

Knight Online is a free-to-play fantasy MMORPG originally developed by MGame Corporation and Noah System, set on the fictional Adonis Continent. Players choose between two warring nations — the human kingdom of El Morad and the orc nation of Karus — and engage in large-scale faction warfare that defines most of the endgame experience.

Players select from four core classes (Warrior, Rogue, Mage, Priest) with faction-exclusive fifth classes available at higher levels. The game combines traditional quest-based leveling and monster grinding with a heavy emphasis on PvP through open battle zones, castle sieges, Lunar Wars, and structured battlefields where rival factions clash for territorial control.

The game launched in South Korea in 2003 and reached international audiences in 2004. It later became available on Steam and remains a popular free-to-play title known for its competitive PvP community, item upgrade systems, and clan-based warfare. Knight Online accounts, currency (Noah), and rare gear are actively traded on player marketplaces.