Mu Holocausto is an online MU game community built around Season 6 Episode 3, offering two server modes: a player-versus-player server with open combat and invasions, and a non-PvP server featuring events such as Blood Castle and Devil Square. Players can create accounts, join events, compete in rankings, and progress through staged content introduced by the administration. Free accounts receive dynamic experience rates, while VIP accounts offer higher experience and drop rates, additional event entries, and longer Off Attack time.

The portal supports play beyond the game client with a character marketplace, player shops, an item auction house, and a web vault for managing WCoin and items. Its community features include live event schedules, guild and player rankings, weekly goals, player-voted competitions, and news about server updates. The server’s progression includes new wings, items, bosses, maps, and events, with future stages announced in advance. Mu Holocausto also provides a wiki with gameplay information and rules for its player-run markets.