Creature Reference Back to Creatures

Allosaurus

Large · Beast · CR 2 · Unaligned

Source. 5e 2024 Rules

13 (natural armor)

51 (6d10 + 18)

Ability Scores

Core attributes and their modifiers.

STR

DEX

CON

INT

-4

WIS

CHA

-3

Overview

Category Animals

Size Large

Type Beast

Alignment Unaligned

XP 450

Initiative Bonus +1

Movement

Walk 60 ft (18.3 m)

Swim 30 ft (9.1 m)

Climb 30 ft (9.1 m)

Crawl 30 ft (9.1 m)

Senses

Passive Perception 15

Saving Throws

Strength +4 Dexterity +1 Constitution +3 Intelligence -4 Wisdom +1 Charisma -3

Skills

Perception +5

Actions

Bite

Cost 1

+6 to hit, reach 5 ft (1.5 m). Hit: 2d10+4 piercing damage.

Melee Attack Roll: +6, reach 5 ft. 15 (2d10 + 4) Piercing damage.

Claws

Cost 1

+6 to hit, reach 5 ft (1.5 m). Hit: 1d8+4 slashing damage.

Melee Attack Roll: +6, reach 5 ft. 8 (1d8 + 4) Slashing damage. If the target is a Large or smaller creature and the allosaurus moved 30+ feet straight toward it immediately before the hit, the target has the Prone condition, and the allosaurus can make one Bite attack against it.

About Allosaurus

Allosaurus is a large beast with a Challenge Rating of 2. It has a unaligned alignment.

In combat, this creature maintains an Armor Class of 13 and possesses 51 hit points (derived from 6d10 + 18).

GM Tips: Using Allosaurus

2 tips available

When using Allosaurus in your D&D 5e campaign, consider these tactical approaches:

Mid-level Encounter: Ideal for parties levels 3-8 as solo or small groups
Terrain Advantage: Use terrain to offset moderate combat abilities

Player Guide: Facing Allosaurus

2 strategies available

When your party encounters this creature, keep these strategies in mind:

Moderate Threat: Prepare standard combat tactics
Tactical Advantage: Use terrain and positioning

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 2.

Solo Encounter:

A single character of level 4 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 600 XP
Hard: 900 XP
Deadly: 1,200 XP

Based on D&D 5e Dungeon Master's Guide encounter building guidelines. CR roughly equals party level for medium encounters.

Frequently Asked Questions

What is the challenge rating of Allosaurus?: Allosaurus has a Challenge Rating of 2, making it appropriate for parties of level 2.0.
What type of creature is Allosaurus?: Allosaurus is a Large Beast, which affects how certain spells and abilities interact with it.