King Ape, Colossal

Gargantuan beast (titan), unaligned

Armor Class 19 (natural armor)
Hit Points 594 (29d20+290)
Speed 100 ft., climb 100 ft.

30 (+10) 24 (+7) 30 (+10) 2 (-4) 28 (+9) 26 (+8)

Damage Resistances bludgeoning, piercing, and slashing from attacks by creatures smaller than Gargantuan size
Condition Immunities frightened, paralyzed, petrified
Skills Athletics +19, Perception +18
Senses darkvision 60 ft., passive Perception 28
Languages Aquan (can’t speak)
Challenge 27 (105,000 XP)


  • Kaiju Sense. The colossal king ape knows the location of the closest Gargantuan monster.
  • Legendary Resistance (3/Day). If the colossal king ape fails a saving throw, it can choose to succeed instead.
  • Massive Size. The colossal king ape occupies a space of 120 feet by 120 feet instead of the space a Gargantuan creature would normally occupy. It cannot be grappled, restrained, stunned, knocked prone, or Shoved by creatures smaller than Gargantuan size.
  • Siege Monster. The colossal king ape deals double damage to objects and structures.


  • Multiattack. The colossal king ape makes four fist attacks.
  • Fist. Melee Weapon Attack: +18 to hit, reach 120 ft., all targets in a 10-foot square. Hit: 55 (9d10 + 10) bludgeoning damage.
  • Rock. Ranged Weapon Attack: +16 to hit, range 200/400 ft., all targets in a 5-foot-wide line, 15 feet long. Hit: 45 (10d6 + 10) bludgeoning damage. If the target is a creature, it must succeed on a DC 23 Strength saving throw or be forced prone.
  • Fling. One Large or smaller object held or creature grappled by the ape is thrown up to 60 feet in a random direction and forced prone. If a thrown target strikes a solid surface, the target takes 3 (1d6) bludgeoning damage for every 10 feet it was thrown. If the target is thrown at another creature, that creature must succeed on a DC 23 Dexterity saving throw or take the same damage and be forced prone.
  • Hurl. The ape throws a rock, tree, vehicle, or similar large object at a 20-foot square within 200 feet that it can see. Any creatures in the target squares must make a DC 23 Dexterity saving throw. A creature takes 28 (8d6) bludgeoning damage, and if Huge are smaller are also forced prone. A successful save halves damage and avoids being forced prone. If the attack misses, the hurled object lands 1d6 squares away in a random direction. Wherever the hurled object lands, the area of effect becomes difficult terrain.


  • Leap Away. When the colossal king ape must make a Dexterity saving throw, it gains advantage on that saving throw and can move up to 50 feet away. This movement does not provoke opportunity attacks. If its movement takes it out of the area of the effect that triggered this reaction, it takes no damage on a successful Dexterity save and only half damage on a failed save.


The colossal king ape can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The colossal king ape regains spent legendary actions at the start of its turn.

  • Fast Healing (2 Actions). The colossal king ape regains 20 hit points.
  • Fist Attack. The colossal king ape makes a fist attack.
  • Ready Defenses. The colossal king ape chooses one creature that it can see. All attacks that creature makes against the colossal king ape have disadvantage.


These immense apes are vastly more dangerous than their smaller kin. They are highly territorial, attacking anything that intrudes on its territory. It does not break off its attack until the trespassers flee, though it retains a special enmity for kaiju and other colossal creatures. Such oversized enemies constitute a threat and a challenge to the ape’s dominance and must be driven out. Colossal apes sometimes bellow, roar, and rage before attacking if trying to drive enemies away, but if they sense real danger they leap to attack without warning or provocation. If a colossal ape is stymied by a heavily armored foe, it attempts to grapple its foe.

This immense titan may be unique, or maybe one of a vast hidden ecosystem of towering kaiju rivals. According to legend, the mightiest of all colossal apes reside on remote islands, sometimes venerated as gods and appeased with sacrifices. Some build great walls to try to contain them, but with their prodigious leaping and climbing abilities it is almost impossible to contain such a beast. They can sometimes be calmed or even made friendly by those with great patience and empathy.

Is a Colossal Gorilla Really a Kaiju? The iconic giant ape in film and fiction debuted in Hollywood with 1933’s King Kong, but he also appeared in the 1962 Toho Productions tokusatsu films King Kong vs. Godzilla and 1967’s King Kong Escapes/King Kong’s Counterattack. While its roots are not Asian, we’ve included it here if you want to provide an iconic opposite number for King Mogaru on page 48.

Section 15: Copyright Notice

Asian Monsters (5E) © 2021, Legendary Games; Authors Miguel Colon, Jason Nelson, Andrew Ha, Aurélien Lainé, Dan Dillon, Ismael Alvarez, James-Levi Cooke, Robert J. Grady, Jeff Ibach, Matt Kimmel, and Thurston Hillman

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