KR6 Genesis

8. Fortress of Acaroth

Past LinireaStageLast checked 2026-10-03

Mode shown: Impossible (free towers only)

At a glance

Field Value
Campaign order Stage 8 of 18
Boss Gor’Thok (name read on the health bar)
Heroes in this run Connor, Zefira
Towers used Gold Prospectors, Archer Garrison, Knights Order, Elven Elite Ranger, plus the stage’s own Acaroth Catapult
Result 3 stars on Impossible

Route and lanes

Fortress of Acaroth opening pan: two skull markers on the left mark the entries, with the walled town and rubble to the right Source: community creator Let’s Play, “Fortress of Acaroth - Impossible 3 Stars (Free Only)”, 0:20.

  • Entries: two, both on the left side (skull markers).
  • Middle: the roads run right through the rubble below the fortress walls.
  • Exits: at the fortress on the right, marked by the glowing markers along the wall.
  • The rubble field in the middle is where most plots sit, so it becomes your kill zone.

Tower placement (free towers only)

Step When What and where
1 Opening Gold Prospectors, upgraded up to IV for income
2 Early waves Archer Garrison on the rubble plots, upgraded later
3 Mid-run Knights Order where the left roads enter the rubble
4 Mid-run Elven Elite Ranger, taken up to IV
5 When available Use the stage’s Acaroth Catapult

Mid-run: rangers and soldiers placed on the rubble plots between the two entry roads Source: same video, 10:00.

  • Keep Connor and Zefira just past the entry roads so the soldiers and heroes block together.
  • Rain of Fire, Reinforcements and Royal Edict all came up during the run.

Boss: Gor’Thok

Gor’Thok fight: the boss health bar reads Gor’Thok at the top while he walks through the rubble field Source: same video, 19:00.

  1. Have every plot built and upgraded before the last wave starts.
  2. Gor’Thok walks the same road through the rubble, so the central towers keep firing at him the whole way.
  3. Put the heroes and Knights Order soldiers in his path to slow him, then drop Rain of Fire on him.

Three-star result

Fortress of Acaroth victory screen with three stars lit Source: same video, 19:26.

Still unknown

  • Gor’Thok’s special abilities (not readable at this resolution)
  • Exact plot for each tower

Sources

  • Community creator Let’s Play, “Fortress of Acaroth - Impossible 3 Stars (Free Only) - Kingdom Rush 6 Genesis” — https://www.youtube.com/watch?v=fjbTBPi8WPE (uploaded 2026-10-01). Frames at 0:20, 10:00, 19:00, 19:26.

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