An enormous version of the normal octopus, physically powerful and clever
The giant octopus is, obviously, an enormous version of the normal creature. They are physically powerful as well as being clever, which makes them a serious threat to seagoing vessels.
In order to bite a creature, the giant octopus must hit with at least two tentacles first. Further, any time a giant octopus hits with at least one tentacle per each 100 pounds of weight of its prey, it has grabbed it; unless the victim can find a way to resist (using whatever method the player might think of and whatever rolls the GM may choose), they will be pulled into the water and thus be in danger of drowning.
Don't forget to account for the weight of armor worn! If a giant octopus fails a morale check, it will squirt out a cloud of black "ink" 40' in diameter and then jet away at twice normal speed for 2d6 rounds. Any characters being held will normally be released at this point.
Basic Fantasy Role-Playing Game
Giant, eight-armed cephalopods. Lurk in coastal waters, close to settlements.
OSE
Giant, eight-armed cephalopods. Lurk in coastal waters, close to settlements.
Giant octopi resemble giant squid, but without the shell or two of their arms, and are smaller. Otherwise they are as giant squid.
OSRIC