Hero Siege party fighting through a generated combat zone
01

Fast route

  1. 01Complete the preceding step, The Final Piece, which points to Mariel and Pelagios in Volcanic Island.
  2. 02Enter Volcanic Island and search for the Cult Hideout side-area entrance; layouts can change, so clear branches rather than following a fixed coordinate.
  3. 03Enter and explore the Cult Hideout until the journal records the hideout objective.
  4. 04Return to the quest flow indicated by the live journal before leaving the difficulty or party.
02

If the objective does not update

  • Re-open the journal and verify the exact active quest and difficulty.
  • Finish uncovered branches and interactables inside the hideout.
  • In co-op, compare progression with the host and retry the area in the correct quest state.
  • Record patch number and screenshots before reporting the issue; do not repeatedly overwrite a useful save without a backup.
FIELD NOTE

These are diagnostic checks, not a guaranteed fix. Recent search results contain bug reports, but they do not establish one universal cause.

03

What comes next

Community quest data links this step toward Abyssal Terror Awakened and a Cthulhu encounter. Follow the current in-game journal if the sequence differs after a patch.

?

Questions players ask

Where is the Cult Hideout?

It is reported as a side area within Volcanic Island. Because layouts are generated, use the zone name and unexplored branches rather than a fixed coordinate.

SRC

Source ledger

Sources support the page at different confidence levels; community detail is labelled in the visible guide.

Hero Siege on SteamGame identity, features and current store capabilities.Season 10: EbontharnOfficial Act 9, difficulty and seasonal-system changes.Official community wikiSystem terminology; totals are treated as patch-sensitive.