D&D Random Encounters for 5E - Underwater

Encounters might be a meeting with a patrol of guards at an old shrine or a familiar looking for aid. It might be an ambush in the wilderness, a stand-off in the city or a monster in the Underdark.
Encounters underwater bring visions of murky seas, vast reefs and dark depths. They might occur in a kelp bed, an underwater cave or by a long-forgotten shipwreck

tools for - dnd5e encounters underwater

level: party size: terrain: sources: type:

combat

1 Sea Hag

At a dirty trench surrounded by sea plants (a mass of plankton covers the area)
They are gathering seaweed
In a fight they focus on the largest foe
Possibly... they have a long reed pipe covered in runes in Aquan and intricate carvings of seahorses (150 gp)
Difficulty... 450 Deadly

combat

2 Giant Sea Horses

At a garden of peaceful seaweed near an old carved underwater cave (close by is a part-buried temple to a power of life)
They are strong swimmers (extra speed)
In a fight they retreat when half their number have fallen
Difficulty... 300.0 Hard

combat

1 Giant Octopus

At a barren slope (which is touched by nature magic)
They are are looking for a mate
In a fight they attack whoever is causing them the most pain
Possibly... they have a Spell Scroll of otto's irresistible dance
Difficulty... 200 Medium

combat

2 Giant Octopi

At an area of rocks (near a skeleton of an ancient sea titan)
They are strong swimmers (extra speed)
In a fight they attack whoever is causing them the most pain
Possibly... they have 1d4 Potions of Water Breathing
Difficulty... 600.0 Deadly

combat

2 Giant Octopi

At a sandy surface on coral (the area is associated with seahorses)
They are haunted by another creature
In a fight they run away as fast as they can if things go badly
Possibly... they have a Tan Bag of Tricks
Difficulty... 600.0 Deadly