Mortal Online is a First Person, Open World, PvP/PvE Sandbox MMORPG developed and published by the Swedish independent video game company Star Vault. Mortal Online was released on June 9, 2010. The game is inspired by the desire to return to Ultima Online's player-controlled, sandbox-style game design, it uses Epic Games' Unreal Engine 3 and features a skill-based, real-time combat system.[1][2]

Mortal Online does not have a traditional level/class system, but rather a skill and attribute system similar to the Elder Scrolls series.[3][4][5][6] There are ten different races for the player to choose from, including an orc-human hybrid, five human races, two elf-like races, and two dwarf-like races.[7] In order to experience multiple possible playstyles, players can have up to four characters per account (increased from three in December 2012).[8]