Acheron WorldDocumentation

Chaos Castle Survival

The every-player-for-themselves Chaos Castle, in a single castle, as a monthly tournament — elimination, semifinal and final.

Turned off for now (October 9, 2026). The regular Chaos Castle still runs.

Chaos Castle Survival arrived on October 8, 2026, from MU's Season 12. It is the Chaos Castle with every level in the same castle, counting toward a monthly tournament.

Open it from the Events → CC Survival menu, or use /ccs join when entry opens.

The monthly tournament#

DayStageWho plays
15The month's ranking resets—
16, 17 and 18Eliminationeveryone with total level 280
19 and 20Semifinalthe top 50 of the elimination
21Final (at 8:00, a single match)the top 20 of the semifinal

During elimination and semifinal there is a match every hour (at 3:30 and 21:35 instead of 3:00 and 21:00). On other days the castle is closed.

The match#

  • Entry opens 5 minutes before. You go straight into the castle and wait for the start in the arena, which is still a safe zone.
  • It needs at least 2 players; with fewer, the match is cancelled.
  • Once it starts, 100 monsters minus the number of players spawn, the arena stops being safe and everyone can attack everyone. No PK and no parties inside.
  • The floor collapses in rings when living players and monsters drop to 40, 30 and 20. Anyone on a fallen ring, or outside the arena, falls into the abyss.
  • A dying monster can explode and throw nearby players away.
  • The last one standing wins, with no monsters left in the castle. The match lasts up to 10 minutes; if time runs out, nobody wins.
  • If you die or leave, you're out. At the end, everyone returns to Lorencia.

Points and rewards#

WhatCycle points
Monster1
Player5
Match win+20
  • Gifts: monsters drop up to 6 gifts per match, straight to the killer's Gremory. In the elimination it's the Gift of Henchmen (zen + a chance at a jewel), in the semifinal the Gift of Knights (more zen, better chance) and in the final the Gift of High Knights (guaranteed jewel).
  • Match winner: the same reward as the Chaos Castle (1 rare jewel and a chance at an epic one), once per account per day.
  • Monthly champion: whoever wins the final takes an epic jewel and the Conqueror's Badge (in the Gremory Case) and is announced to the whole server.
  • Rewards only count in matches with at least 2 different accounts.

Conqueror's Badge → Wings of Conqueror#

The champion's badge becomes a wing in the Chaos Machine, Wings and capes tab:

  • Conqueror's Badge + Jewel of Chaos + Jewel of Creation + 10 Jewel of Bless + 10 Jewel of Soul + 10,000,000 zen → Wings of Conqueror with 1 or 2 excellent options (100%).

Since Chaos Castle Survival is turned off, the badge only drops again once the event comes back.