Octopus
Small Beast · · CR 0
- Beast
- Small
- Tier 1
Ranges across underwater; Octopus lists at CR 0 as a small beast (unaligned). Sourced from Monster Manual (5e 2014) and Monster Manual (5.5e 2024).
Stat Block
- Challenge Rating
- 0
- Type
- Beast
- Size
- Small
- Alignment
- —
- Speed
- —
- Habitats
- Underwater
- Sources
- Monster Manual (5e 2014), Monster Manual (5.5e 2024)
Ecology
Octopuses inhabit shallow seas, kelp forests, sunken wrecks, and tide pools. Solitary ambush predators, they eat crabs, fish, mollusks. They are profoundly intelligent — capable of opening jars, recognizing individuals, and using tools (shells as armor). Their soft body squeezes through any opening larger than their hard beak (about 1 inch for a normal octopus). Lifespan is short: 1–2 years in most species, dying after a single mating.
Behaviour
Curious, cautious, clever. Octopuses solve puzzles in real-world studies and remember which divers feed them versus which ones poke them. They communicate primarily by color and skin-texture change — chromatophores let them flash signals or vanish into background. They never socialize and avoid all but mating contact.
Origin
**Sea hags** keep octopus familiars, and the sahuagin of the Sword Coast call octopuses 'mind-fish' for their cleverness. The legendary **kraken** is theorized by sages to be either a kindred or ancestor of the octopus lineage, magically magnified. In Calimshan, an octopus motif appears on House Hadrim's heraldry, marking ancestral merfolk allegiance.
Related Monsters
Frequently Asked Questions about Octopus
- What is the challenge rating of Octopus?
- The CR on Octopus is 0. That CR fits parties just starting out.
- What type of creature is Octopus?
- By creature type, Octopus is a beast, small size.
- Where does Octopus live?
- Octopus is at home in Underwater.