Set in medieval times, Mourning lets you explore an online world, which includes underground caverns and dungeons, woodlands, mountain ranges, deep forests, ice lands, swamps, cities, and towns. The game features only races, skills, and attributes so that you can focus more on developing your in-game personas. In the game's new political and economic system, you can join alliances, invade territories, participate in player-versus-player fights, and more. In Mourning, you can have an entire bloodline--a feature that lets your characters marry, have children, and (in the case of permanent death) continue their journeys through their kin.