This site is games | books | films


Dinosaur, Brachiosaurus

800px Brachiosaurus DB
Brachiosaurus altithorax Date 2007

This incredibly tall quadruped has a huge, almost erect neck, a short tail, a very broad chest, thin legs and a short head with a flat snout and a high crest. Although the seismosaurus might be longer and heavier, the brachiosaurus is the tallest of all the dinosaurs. The largest specimens (such as the sauroposeidon) reach Colossal+ size. Brachiosaurs are almost 90 feet long and nearly 50 feet tall. They are slow and clumsy by even the standards of the sauropods, but their long legs and neck allow it to reach the tallest branches. They are herd organisms, and because of their size have no natural enemies.

Originally Posted by Shade of the En World forums.

On this Thread

Heaviest of all dinosaurs, this monster dwells in warm swamps and lakes. Its long front feet are deadly. It weighs roughly 90 tons, three times more than a brontosaurus. Brachiosaurus is one of the tallest and largest dinosaurs known. It is a huge herbivore that walks on 4 legs, but unlike other large herbivores, it’s front legs are longer than it’s hind legs, which elevates it’s neck like a giraffe.

Dinosaur, Brachiosaurus
Colossal animal
Hit Dice28d8+282 (408 hp)
Speed40 ft. (8 squares)
Armor Class15 (-8 size, -2 Dexterity, +15 natural), touch 0, flat-footed 15
Base Attack/Grapple+21/+52
AttackStamp +28 melee (5d8+15/19-20)
Full Attack2 stamps +28 melee (5d8+15/19-20)
Space/Reach50 ft./40 ft.
Special AttacksTrample 10d8+22
Special QualitiesDamage reduction 6/- (from Damage Reduction feats), Low-Light Vision, Scent
SavesFort +27, Ref +14, Will +13
AbilitiesStrength 40, Dexterity 7, Constitution 29, Intelligence 1, Wisdom 14, Charisma 12
SkillsListen +15, Spot +27
FeatsAlertness, Damage Reduction (x2), Diehard, Endurance, Epic Toughness, Great Fortitude, Improved Critical (stamp), Iron Will, Skill Focus (Spot)
EnvironmentWarm and temperate forests and hills
OrganizationSolitary, pair or pod (5-20)
Challenge Rating12
AlignmentAlways neutral
Advancement29-56 HD (Colossal); 57-84 HD (Colossal+)
Level Adjustment


A brachiosaurus is most likely to use its front claws for uprooting trees, but when attacked by something large enough to concern it (usually a rival brachiosaur), it can use them to deadly effect. Against most dangers, it simply walks over them.

The stamps of a brachiosaurus are considered to be bludgeoning and slashing weapons for the purposes of overcoming damage reduction.

Trample (Ex): A brachiosaurus can literally run over any creatures in its way that are of Gargantuan or smaller size. Creatures trampled must make a Reflex save (DC 39 half) or take 10d8+22 damage. The save DC is Strength-based.

Originally appeared in Monstrous Compendium Volume Three: Forgotten Realms Appendix (1989).

Scroll to Top