This article is about the tower in Kingdom Rush: Vengeance. For the level in Kingdom Rush, see Rotten Forest.

TwrIcon RForest "The forest has eyes."

The Rotten Forest is a premium Artillery Tower introduced in Kingdom Rush: Vengeance, available for $2.99 as an in-app purchase. The tower is surrounded by a field of entangling roots that slows down and deals damage to all enemies within range.


Tainted by dark forces, this ancient forest slowly saps away the life of enemies passing by. Much like it sapped the life of the trees that resisted corruption.

Rotten Forest slows down all enemies in its range.


Level Damage Fire Rate Slowdown Range Build
RForest I 1 2-2 1.0s 20% Short 120
RForest II 2 3-3 0.65s 20% Short 140
RForest III 3 4-4 0.5s 30% Short 190
RForest IV 4 5-5 0.4s 30% Short 220


Evil Treants

TwrSkill RF 1 "Did that tree just move?"

Spawn 2 Treants that fight enemies for 10 seconds.

Treant's health degrades by -5 HP per 0.2 second and is not affected by War Rations.

MiniBox RotTree HP Damage Armor
260 16-24 None
Level Cost Cooldown
1 200 (170) 18 seconds
2 100 (85) 13 seconds

Roots of Evil

TwrSkill RF 2 "Watch out for the thorns."

Entangles (min 2, max 5) enemies with roots, immobilizing them for a while. (Cooldown: 15 seconds)

Level Cost Duration
1 160 (136) 3 seconds
2 160 (136) 6 seconds

Fog of Despair

TwrSkill RF 3 "Beware of the fog."

Enemies affected by the fog have a slight chance to miss their attacks.

Level Cost Miss Chance
1 120 (102) 5%
2 120 (102) 10%


This tower is a strictly back-line physical damage tower. Placing this tower too far from the support of barracks towers will greatly diminish this tower's potency, especially against fast enemies. This tower's skills also demonstrate why this tower requires barracks to be useful; the sole function of "Fog of Despair" is to prolong the survival of any barracks units/heroes acting within the range of the tower. Evil treants, despite their limited duration, can help stall enemies for a short while. The "Roots of Evil" upgrade permits the tower to deal more damage against enemies ensnared within the roots, as well as buys time for other slow towers to act such as the Orc Shaman.


Related Upgrades

  • KRVUp Guild GUILD OF MERCHANTS (2 souls): Costs of towers' special skills is now reduced. (15% cost reduction)
  • KRVUp Master MASTER ARCHITECTS (2 souls):All towers gain extra bonus damage. (10% additional basic attack damage)


  • "All humans are my enemy."
  • "Don't get lost in the woods!"
  • "Intruders beware!"

Tier 4:

  • "The forest has eyes." (build)
  • "Burárum" (Evil Treants)
  • "Fear the thorns!" (Roots of Evil)
  • "There's something in the mist." (Fog of Despair)


  • "Intruders Beware!"
    • part of a warning by the late One-Eyed Willy in the film "The Goonies".
  • "The Forest has eyes."
    • The title of a children's picture book by Bev Dolittle.
  • "Burárum"
    • An Entish sound or word, from The Lord of The Rings: The Two Towers, issued by Treebeard when he spoke of the orcs. The word is described as a "deep rumbling noise like a discord on a great organ", signifying Treebeard's disgust at the thought of these creatures. It is glossed as an "Entish noise of disgust".
  • "There's something in the mist."
    • A line from the film The Mist based on a Steven King book of the same name. A largely unseen creature hides in the titular mist and drives a town to madness.