Underwater Encounter Tables

Underwater Encounter Tables

VGtM = Volo's Guide to Monsters. Underwater Encounters (Levels 5-10) MToF = Mordenkainen's Tome of Foes d8+d12 A Note on Water Breathing 2 1 marid or 1 morkoth (VGtM) To expand options some stats and creatures are adapted 3 1d3+1 giant sharks from other environments. These may need a way of water 4 2d6+2 sahuagin led by a sahuagin baron or roll on Sahuagin lvl 5-10 breathing to survive underwater. 5 1d4+1 giant constrictor snakes or 1 hydroloth (MToF) The water breathing spell lasts for 24 hours or several magic items grant water breathing, including cap of water 6 A coven of 3 sea hags or roll on Underwater Spirits lvl 5-10 3d6 sahuagin and 1d3 sahuagin priestesses or 1 mage with water breathing, cloak of the manta ray, necklace of adaptation and 7 ring of water elemental command breathing served by 1 water elemental myrmidon (MToF) Lastly, any creature can be made aquatic by giving it a 8 1d4 water elementals or roll on Underwater Spirits lvl 5-10 swim speed equal to its walking speed and the amphibious 9 4d6 merfolk with 3d6 giant seahorses ability. 10 2d6 sahuagin and 1d4+1 hunter sharks or roll on Sahuagin lvl 5-10 Amphibious. This creature can breathe air and water 11 Roll on Underwater Levels 1-4 table or 3d6 sea spawn (VGtM) 12 1d4+2 killer whales 13 1d2 hydras or roll on Underwater Monsters lvl 5-10 14 1d4+1 chuuls or 2d6 hunter sharks 1 sea troll (swim 30 ft.) with 1d6 merrow or roll on Underwater 15 Monsters lvl 5-10 2d6 plesiosauruses or 1 kraken priest (VGtM) with 1d4 cult fanatics 16 (with water breathing) 17 1 aboleth or roll on Underwater Monsters lvl 5-10 18 1 sea hag and 2d4 merrow 1 young black dragon or 1 kraken priest (VGtM) with 1d4+1 deep 19 scions (VGtM) 20 1 storm giant

Underwater Encounters (Levels 11+) Underwater Encounters (Levels 1-4) d8+d12 d8+d12 2 1 adult black dragon or 1 leviathan (MToF) 2 1 giant shark or 1 kraken priest (VGtM) 3 1 kraken 3 1d3 plesiosauruses or 1 sea hag with 1d2 sea spawn (VGtM) 4 2 young black dragons or roll on Underwater Monsters lvl 11+ 4 1d4 sahuagin with 1 sahuagin priestess or roll on Sahuagin lvl 1-4 5 4d6 merrow or 1 storm giant quintessent (VGtM) 5 2d6 giant crabs or roll on Underwater Beasts 6 1 aboleth with 2d4 chuuls or roll on Underwater Monsters lvl 11+ 6 1d2 chuul or roll on Underwater Monsters lvl 1-4 7 3d6 killer whales or 1 wastrilith (MToF) 7 1d4+1 reef sharks or roll on Underwater Beasts 8 1d3 marids or roll on Underwater Monsters lvl 11+ 8 1d3 sahuagin and 1d3 reef sharks or roll on Sahuagin lvl 1-4 9 2d4 giant sharks or 1d2 aboleth 9 1d3 giant octopi or roll on Underwater Beasts 10 1 dragon turtle or roll on Underwater Monsters lvl 11+ 10 1d2 merrow or roll on Underwater Monsters lvl 1-4 11 Roll on Underwater Levels 5-10 table or 1 morkoth (VGtM) 11 2d6 giant seahorses or roll on Underwater Beasts 4d6 sahuagin and 1d4+2 sahuagin priestesses led by a sahuagin 12 12 2d6 merfolk or roll on Underwater Humanoids baron 13 1d3 killer whales or 3d6 dolphins (VGtM) 13 1 storm giant with 1d3 killer whales 14 2d4 steam mephits or roll on Underwater Spirits lvl 1-4 14 2d4+2 sahuagin priestesses each with a Hunter Shark 15 1d3 hunter sharks or 1d4 sea spawn (VGtM) 15 2d4 water elementals or 1 archduid (VGtM) 2d4 merfolk with 2d4 giant sea horses or roll on Underwater 16 16 1d3 storm giants Humanoids 1 marid and 1d4 water elementals or 1 archduid (VGtM) with... (roll 17 1d3 swarms of quippers or 1 deep scion (VGtM) 17 Sampleon Beast Encounters) file 1 sea hag and 1d2 swarms of quippers or roll on Underwater Spirits 18 18 1 sahuagin baron and 1d4+2 giant sharks lvl 1-4 19 1 archmage and 1d6 gladiators with water breathing 19 1 giant constrictor snake or 1 druid 20 1 empyrean or 1 lich 20 1 water elemental or 1 sea elf spirit (banshee stats)

2 Location Tables Underwater Semi-Civilized Locations In italics are optional extra details. Use Wilderness, Semi-Civilized or Unusual table for an encounter location. d8+d12 A sunken temple to a power of strength. There is a garden of The Underwater Location Detail and Underwater Combat 2 Terrain can be used to customize the location. colorful seaweed (there is a stationary pocket of air) A carved monument with lawns of ornamental sea grass (there is a 3 programmed illusion here) 4 A line of statues surrounded by rock (nearby is an ornate tomb) Underwater Edge of Wilderness Locations A coral-carved hall with a patch of sea anemones (the area is 5 In italics are optional extra details. associated with a magical tentacled monster) A pillar of stone surrounded by sand (which is associated with d8+d12 6 whales) An ugly crevasse in an area of black kelp (near a permanent A garden of pretty sea plants and an underwater cave entrance (a 2 7 maelstrom) bright light is in the area) A shallow trench on a sunken island and a wide sea cave entrance (it 3 A stone mosaic and a patch of cultivated seaweed (there is a sunken 8 is touched by druidic magic) fishing boat) 4 A sparkling canyon (there are several sea flowers) An algae-covered shell mosaic near a seaweed garden (a forceful 9 5 An area of dead coral (nearby is a mound of shells) current pulls creatures upward) A rock reef by a patch of sea mushrooms (there is the corpse of a 10 A decorated shipwreck (nearby is a wide crevasse) 6 sea hag) 11 A coral-carved hall with a statue (it is protected by a sea spirit) 7 A shallow trench and a dying kelp garden (close by is a shipwreck) An edible kelp garden near a shell mosaic (by a sandy surface on 12 8 An area of sea anemones (close by is a pile of rocks) coral) A patch of bright sea grass surrounded by shells (there is a harmless An unusual line of statues and a pile of seaweed (many coloured 9 13 group of seahorses approaching) lights are in the area) A narrow chasm and a algae-covered rock (a strong current flows A sparkling statue by a hidden carved underwater cave (there is an 10 14 through the area) inquisitive group of crabs approaching) A pile of red seaweed by a deep hole (there is a harmless group of A steep slope with a seaweed garden (there is a seaweed-covered 11 15 fish approaching) barrel) A bed of kelp with a mound of dead seaweed (there are a few 16 A statue of a sea deity (the marine wildlife has disappeared) 12 unusual rocks) 17 A cairn in a large pocket of air (nearby is an undersea mountain) 13 A glowing sea cave entrance (many coloured lights are approaching) A sunken ruins with a kelp-covered shrine to a forgotten power 18 An algae-covered rock and a patch of edible seaweed (nearby are a (nearby is an oyster reef) 14 few underwater cave entrances) An area of living coral by a group of tentacled statues (there are a 19 A meadow of pink sea plants (there is a mass of rotting bodies few clams) 15 chained together) A shrine to several deities made from a shipwreck (the area is 20 16 A pair of sea cave entrances (they are watched by a ghost) blessed by a power of chaos) An area of white sand littered with shells (the area is disguised by a 17 hallucinatory terrain) 18 An undersea mountain (a forceful current pulls creatures downward) 19 A broken cliff by a patch of shells (someone has left a net) 20 A skeleton of an ancient sea titan (it is associated with octopi) Sample file

3 Underwater Location Detail Underwater Unusual Locations Minor details to add to other locations d8+d12 A sparkling coral tomb of a storm giant built into an undersea 2 d8+d12 mountain. Sometimes it shakes with rumbling noises. 2 A thorny patch of bright seaweed A cave entrance lined with draconic runes. A dormant mechanism is 3 3 A recently dug hole located here along with many large bones. 4 An underwater beacon Spear of the Ancients. A gigantic trident protrudes from the seabed. 4 It is adorned with seaweed and used as a shrine to a hunting deity. 5 An illusion of several surface beasts A beautiful structure built from bone and shells surrounded by a 6 A stone statue of a sea deity 5 circle of pillars. A warrior from the surface died here. 7 Several sea urchins or a lawn of sea grass A grand seaweed maze cursed by a powerful ghost. It is bound to 8 A patch of sea anemones 6 wander its many paths and ask many questions of visitors. 9 Several large red sea mushrooms Hulk of a sunken ship with a arcane metal device. There is a portal 7 10 Many long strands of bright seaweed to the Shadowfell (or Limbo) which attracts strange creatures. 11 A garden of shells Garden of Above and Below. A strange garden of shells and objects 8 12 Area of sahuagin bones from the surface. Merfolk come to admire it and add more things. 13 A patch of chromatic seaweed Several underwater cave entrances are home to powerful elemental 9 magic. There are pockets of air with drawings and wall carvings. 14 A wounded and unconscious cute animal An underwater crater with mounds of seashells and littered with 15 A sunken rowing boat 10 debris. A maelstrom sometimes forms, tied to lunar phases. 16 A seaweed garden Atop a ridge is an eroded line of giant statues, depicting members 11 17 Several bright colored lights of a pantheon. Ancient magic lingers here, waiting to be tapped. 18 A diving bell Hunger's Hill. A pile of disparate wrecks is lit by flickering colored 12 19 A decaying humanoid body lights that roam the area. Stories tell of undead sharks seen here. 20 A line of large clams A citadel of coral and stone decorated with shells and shiny objects. 13 Aquatic elves often add more decorations and admire their artistry. A system of tunnels and chambers is carved into dead coral. It acts 14 as a palace for a marid and is linked to the Elemental Plane of Water. A sunken island with strange rampant seaweed. It is surrounded by Underwater Combat Terrain 15 kelp and a strong current forces swimmers down to it. This terrain provides obstacles and things to use in combat. Inn of the Sea Dragon. In a trench with magical wards, this structure 16 is carved from coral. Travelers are found from many realms. d8+d12 An unmoving giant golem stands by a wide abyss. A mosaic of sea 2 A maelstrom 17 plants and stone surrounds both, depicting a gilled humanoid. 3 Bottom of a cliff A kelp forest of thick seaweed contains many oysters. Beside it sits 4 An area of magical darkness 18 a murky algae-covered gully. The area borders the Lower Planes A cave entrance blocked sticky seaweed (treat as webbing - DMG 5 A stone arch stands over the remains of a kraken. Strange shapes pg 105) 19 and patterns appear and evolve in the brightly colored sand. 6 A whale skeleton Eon Watcher. On a cliff-face is a timer of glass as tough as steel. It 20 7 A floating pocket of air slowly fills with shells before resetting. Blessed by a sea deity. 8 A column of stone 9 A glyph of warding (explosive runes - thunder) 10 A cage on a chain or half of a wreched ship 11 Grasping seaweed in the area acts as an entangle spell A swarm of inquisitive brightly-colored fish, attracted to any light 12 source 13 A strong current runs through the area 14 An underwater cave entrance 15 A cloud of inky black darkness 16 A forceful current pulls creatures downwards 17 An anchor with a chain leading upwards 18 A deep trench Sample19 A forceful current pulls creaturesfile upwards A hidden cache (Perception check to spot if near) with oil of 20 slipperiness (or roll on Minor Underwater Treasures)

4 Beasts & Humanoids Humanoid Encounters These tables can be used as alternative low-level underwater d4+d6 encounter tables 2 1 malenti (sahuagin stats, sea elf form) or 1 kraken priest (VGtM) Adventurers with water breathing - 1 thug, 1 scout, 1 noble, 1 priest 3 and 1 guard 4 1 priest missionary (replace dispel magic with water breathing) 5 1d6 merfolk with 1d6 giant sea horses 1 sea elf berserker (swim 30 ft., Stealth +3, Survival +2) with 1 giant 6 seahorse 7 1d3 merfolk with 1d3 sea elf tribal warriors (swim 30 ft.) and 1 druid 8 1d6 lizardfolk diving from the surface 9 1d2 merrow 10 1d6 sea elf scouts (swim 30 ft.) 11 2d6 merfolk or 1 deep scion (VGtM) 12 2d4 sahuagin or roll on Sahuagin lvl 1-4 13 1 sea hag with... (roll on Beast Encounters) 14 2d4 fish folk (kuo-toa stats) or 1d4 sea spawn (VGtM) 15 1d4+1 sahuagin and 1d4 reef sharks or roll on Sahuagin lvl 1-4 16 1 lizardfolk shaman (can change into a giant octopus) Beast Encounters 17 1 druid d8+d12 18 1 kuo-toa whip with 1d4 kuo-toa from the Underdark 2 1 giant shark 19 1d4 sahuagin with 1 sahuagin priestess or roll on Sahuagin lvl 1-4 3 1 giant constrictor snake and 1d4+1 constrictor snakes 20 1 mage with a cap of water breathing 4 1d3 plesiosauruses 5 1 giant lobster (chuul stats with Int 2) Underwater Character Races 6 1d3 hunter sharks Use this table for sea druids, adventurers and other NPCs. 7 4d6 playful sea horses Creating merfolk or kuo-toa NPCs is described in the Dungeon Master's Guide (page 282). Tritons, sea elves and 8 1d4+1 reef sharks water genasi can function underwater. 9 1d4 giant octopi 10 2d6 giant seahorses d4+d6 Underwater Character Races 11 1d3 swarm of quippers or 3d6 dolphins (VGtM) 2 Kuo-toa 12 2d4 constrictor snakes 3 Half-elf (sea elf) or Lizardfolk (VGtM) 13 1d2 killer whales 4 Dragonborn (black) 14 3d6 inquisitive octopi or 1d4 saltwater crocodiles 5 Human or Triton (VGtM) 15 1d2 giant constrictor snakes 6 Merfolk or Water Genasi (EEPC*) 16 2d6 giant crabs or 3d6 quippers 7 Dragonborn (bronze or gold) or Sea Elf (MToF) 17 1 patch of awakened seaweed (use stats of awakened bush) 8 Merfolk or Triton (VGtM) 18 1 hunter shark and 1d4 reef sharks 9 High elf or Sea Elf (MToF) 19 1 swarm of crabs (swarm of insects stats of with swim 30 ft) 10 Merfolk 20 an aquatic shambling mound *EEPC is the Elemental Evil Player's Compaions, a free Underwater Mounts pdf from Wizards of the Coast For medium-size npcs & leaders, with options for other sizes.

d4+d6 2 giant constrictor snake 3 swarm of quippers or reef shark 4 killer whale 5 plesiosaurus or giant crab 6Samplegiant seahorse file 7 hunter shark or dolphin (VGtM) 8 giant octopus 9 saltwater crocodile 10 giant lizard or young black dragon

5 Non-Combat Encounters Quick Underwater NPCs d4+d6 Underwater Non-Combat Creature Gorev is a heartbroken archmage with a collection of ornate rings. Encounters 2 They are unable to hide emotions and having a hiatus away from Most encounters below retreat, hide or surrender in combat. civilisation. Their attention has been taken up by a local magical site. Keranios is a grim lizardfolk pearl diver with an affectionate pet 3 d8+d12 seahorse. They talk about a group of druidic whales who rule the seas. 2 An empyrean in on a sightseeing tour of various underwater ruins Xappan gaunt merrow with an pipe that blows bubbles. They talk 4 A spirit naga (swim 40 ft.) asks many probing questions. Has things about the importance of giving and have a gift for one of the group. 3 from the surface to trade Sariel is an old scout with a pair of glowing goggles. They are 5 4 Several kuo-toa lost from the Underdark are bewildered by the sea concerned only with the present and have a sea anemone collection Arannis unhappy sea elf priest with flowing blue hair. They seek 5 A storm giant is gathering donations to help a good cause 6 information about an artifact and have a rivalry with a merfolk mage 6 A few acolytes and a priest doing a ritual in old underwater temple Alhandra is a crafty druid with several whale tattoos. They are 7 An awakened giant octopus (int 10) wants a long conversation 7 accompanied by sea urchins are like talking to creatures of the sea 8 A deva is trying out different beast forms in the water Katernin is a joking berserker with an assortment of ivory charms and 8 9 A druid (can turn into a killer whale) looks for others of their kind strange armor. They have fallen in love with an inhabitant of the sea. A few cultists (with water breathing) have been sent to find a wreck Vezera is a philosophical sea hag wearing mismatched clothes from 10 9 (or kraken) the surface. They love talking for hours and make beautiful poetry. 11 A group of young merfolk want to learn of places beyond the sea Raam is a smug veteran with a runed spear and a pegleg. They are 10 12 A sea sprite (swim 40 ft.) is after allies to help protect the area scared of the undersea world but hope to salvage an undersea wreck. A rescue giant seahorse is looking for help for trapped ally. It carries 13 bags with useful items such as rope, potions and tools. 14 A dryad of a large underwater plant asks for some music or a tale Underwater Hazards and Obstacles A pair of talking giant crabs (int 10) ask for advice on styles of shell Encounters to hinder, threaten or inconvenience the 15 and different homes. Have a variety of large colorful shells nearby. characters. Option to combine with a creature encounter. A malenti (sahuagin that looks like an aquatic elf) is looking to start 16 d8+d12 a new life. They ask about opportunities on the surface. 2 Area of dead magic (treat as antimagic field) 17 Among a shipwreck skeleton crew work as if they were alive 3 Maelstrom (25% chance portal to Plane of Water) 18 A clay golem is dragging a large net something along the seabed 4 Area of frigid water (DMG page 110) with chunks of ice on seabed A whale (or shark) turns out to be an adult gold dragon scholar who 19 asks many questions about their lives and adventures. 5 Cloud of murky toxic water (poison damage or poisoned condition) A gnome mage and their veteran assistant are operating an 6 A siren's call for help from a sea cave mouth 20 apparatus of Kwalish. They are searching for an undersea alchemist. 7 Underwater current that pulls down into underwater ravine 8 Cloud of inky blackness (25% chance portal to the Shadowfell) 9 A bubble (or pocket) of air, floating or stationary 10 Strong underwater current that might carry creatures away A phantom ship that sails underwater or bloated corpses infected 11 with disease An area of sharp, jagged seaweed (treat as razorvine, DMG page 12 110) 13 A swarm of inquisitive sea-horses 14 A mass of animated seaweed (like entangle spell) 15 A periodic booming noise from a sea cave or trench 16 A bright beacon, possibly a distress call or celebration Underwater steam vent or a weird mass of seaweed that acts as 17 Brown Mold (DMG pg 105) 18 A sonic beacon, possibly a distress call or warning 19 A mass of rotting bodies, floating or chained together Sample20 A dark vortex that pulls creaturesfile in, portal to another plane

6 Underwater Objects and Treasures Underwater Mundane Items

Discarded objects, quick loot or extra NPC equipment

d8+d12 2 a ship's figurehead or a stone pillar 3 a metal cage large enough for two humanoids 4 a holy symbol of a sea deity or a rusted shortsword 5 a rowing boat with a large hole 6 a conch shell or a stone humanoid head 7 a trident 8 an anchor or a bronze bell 9 a conch horn 10 a fishing net or a humanoid skull 11 a colored rock 12 a shell necklace or a tin of hard biscuits 13 a belt pouch full of tarnished copper coins 14 a sealed clay pot or a silver wedding ring 15 a shield made from a large shell 16 a bottle full of sand or an astrolabe 17 a corpse laden down with stones 18 a rum flask or a whalebone corset Underwater Magic Items (d20) 19 a rusted iron chest Use 1d10 for Uncommon items, 1d6+10 for Rare, 1d4+16 20 or roll on Minor Treasures for Very Rare & Legendary

Underwater Minor Treasures 1d20 1 Mariner's Armor or Necklace of Adaptation d8+d12 2 Immovable Rod 2 A large green peridot worth 1000 gp 3 Eversmoking Bottle or Decanter of Endless Water 3 Potion of Storm Giant Strength or Potion of Vitality 4 Trident of Fish Command or Driftglobe Intricate set of dragonchess with ivory pieces using creatures of the 4 sea 5 Cap of Water Breathing or Gloves of Swimming and Climbing 5 Elemental Gem (water) 6 Helm of Telepathy or Goggles of Night 6 Several sheets of bronze engraved with sea elf ballads in Elven 7 Cloak of the Manta Ray or Bag of Holding 7 Elixir of Health or Potion of Greater Healing 8 Pearl of Power or Alchemy Jug A long reed pipe covered in runes in Aquan and intricate carvings of Bag of Tricks - Underwater (1d8 - 1. crab; 2. octopus 3. constrictor 8 seahorses. Worth 150 gp 9 snake 4. giant seahorse; 5. swarm of quippers; 6. giant octopus; 7. plesiosaurus ; 8. hunter shark) 9 Potion of Animal Friendship or Scroll of Protection - Beast 10 Ring of Swimming 10 An exotic saddle or 100 ft. of silk rope 11 Ring of Free Action or Robe of Eyes 11 1d4 Potions of Water Breathing or 1d4 Potions of Healing 12 Bowl of Controlling Water Elementals or Ring of Animal Influence 12 Artisan's tools (mason's tools or alchemist's supplies) Cube of Force or Figurine of Wondrous Power - Ebony Whale (as Ivory 13 Oil of Slipperiness 13 Elephant except it summons a killer whale) 14 2d6 holy symbols of various sea deities 14 Ring of the Ram or Staff of Healing 15 Spell Scroll of control water (or freedom of movement) 15 Amulet of Health or Bracers of Defense 2d4 waterproof ceramic and glass lanterns capable of working 16 16 Daern's Instant Fortress or Rope of Entanglement underwater. Worth 50 gp each Staff of the Ocean (as staff of frost except spells are speak with 17 Bead of Force or Dust of Dryness 17 animals - 1 charge, water breathing - 3 charges, control water - 4 18 1d6 pearls worth 100 gp each charges, freedom of movement - 4 charges) 19 SampleSpell Scroll of mirage arcana (or telepathy) 18 Helm of Brilliance or Iron Flask (mafilerid inside) - legendary A hooded cloak with eight tentacles. It is finely woven of rare 19 Rod of Security or Ring of Elemental Command (water) 20 seaweed and sea-elf hair. Worth 1200 gp 20 Animated Shield or Apparatus of Kwalish - legendary

7 Activities & Complications Underwater Encounter Activity or State Encounter Complication or Enhancement

They are... (or one is...) d8+d12 2 There is a programmed illusion (or mirage arcana) here d8+d12 There are merrow (or roll on Underwater Humanoids) here (or 3 2 a shapechanger (or have one among them) or serve a local monster nearby) as allies (or servants / mercenaries) investigating (or playing with) an item (roll on Underwater Mundane 4 There is a hallucinatory terrain concealing a chasm 3 Items) There is a cloud of ink black darkness or roll on Underwater Combat 5 4 mutated (or mutilated) in some way Terrain 5 waiting for someone (or something) There is a hidden item (or cache) here. A Bead of Force or roll on 6 adapted to darkness (blindsight or darkvision) or infected with Minor Underwater Treasures 6 disease 7 There is a whale skeletonor roll on Underwater Combat Terrain 7 hiding from (or watching) a nearby threat There are giant sea horses here (or nearby) as pets (or guards). For 8 8 telepathic (telepathy 120 ft.) or cursed alternatives roll on Underwater Beasts There is a strong current running through the area or roll on 9 guarding (or exploring) the local area 9 Underwater Combat Terrain strong swimmers (add 20 ft. to swim speed) or injured (not at full 10 There is a prisoner in the encounter or a lone traveler nearby. Roll hit points or reduced speed) 10 on Quick Underwater NPCs 11 partway through (or starting) a journey (or migration) 11 There is a wreck here (or ancient sunken settlement) 12 investigating (or consuming) an unusual type of seaweed or resting The creatures are carrying a magic item (or it is hidden nearby). Roll 13 searching for sustenance (or a companion) 12 on Magic Items - Underwater 14 fleeing from something or eating There is a floating pocket of air or roll on Underwater Hazards and 13 15 exploring (or watching) a cave mouth (or magical portal) Obstacles 16 marked by (or bearing symbols of) a deity of the sea (or darkness) 14 There are several underwater cave entrances here 17 hiding from (or curious about) a nearby light source There is a swarm of inquisitive seahorses or roll on Underwater 15 18 investigating a dead body (roll on Quick Underwater NPCs) Hazards & Obstacles 19 haunted (or harassed) by another creature Nearby is a dragon turtle (or pick from Underwater Encounters Level 16 11+) those encountered try not to disturb. 20 playing a game or close to giving birth There mass of rotting bodies chained together or roll on 17 Underwater Encounter Sentient Activity Underwater Hazards and Obstacles There is a portal here to the Elemental Plane of Water (or the river 18 Extra options for sentient creatures. They are... (or one is...) Styx in the Lower Planes) There is a second group of creatures nearby (roll again on the d8+d12 19 appropriate encounter table) 2 spying on someone else 20 There is a shrine to a sea deity protected by hallow (or forbiddance) 3 performing a ritual 4 talking (or trading) with someone (roll on Quick Underwater NPCs) 5 investigating (or watching) something from the surface 6 making underwater art (or music) 7 exploring a wreck (or ruins) 8 playing with a pet or consuming food 9 hunting (or being hunted by) a beast 10 searching for a person (or place) 11 foraging for sustenance (or herbs) 12 preparing to go to the surface 13 gathering seaweed (or pretty stones) 14 waiting in ambush or on patrol 15 gathering shells (or small sea creatures) 16 playing with seaweed (or fish) 17 Sampledisplay the symbol of a local deity (or faction) file 18 relaxing or lost 19 scavenging for anything valuable 20 telling a story

8 Other Encounter Tables Sahuagin (Levels 1-4)

d4+d6 2 1 sahuagin priestess with 1d3 sahuagin 3 1d4 sahuagin with 1d2 swarsm of quippers 4 1d3 sahuagin priestesses 5 1d4+1 sahuagin 6 1 sahuagin priestess with 1d3 reef sharks 7 1d3 sahuagin with 1d3 reef sharks 8 1d4 sahuagin with 1 hunter shark 9 1 malenti (a sahuagin with appearance of an aquatic elf) 10 1 sahuagin with 1 giant shark Underwater Monsters (Levels 1-4) Sahuagin (Levels 5-10) If required give creatures the amphibious trait: Amphibious. This creature can breathe air and water d4+d6 2 2d4 sahuagin with 2d4 hunter sharks led by 1 sahuagin priestess d4+d6 3 2d4 sahuagin with 2d4 reef sharks and 1d2 giant sharks 2 1 sea troll (swim 30 ft.) or 1 roper (swim 10 ft.) 4 2d4+4 sahuagin with 1d3+1 sahuagin priestesses 3 1d2 grells (swim 30 ft.) or 1 flail snail (VGtM) 5 2d6+6 sahuagin 4 1 sea pudding (black pudding stats with swim 20 ft.) 6 2d6 sahuagin led by 1 sahuagin baron 5 1 chuul or 1 slithering tracker (VGtM) 7 3d6 sahuagin with 1d3+1 hunter sharks 6 1d2 merrow or 1d2 deep scions (VGtM) 8 1 sahuagin baron with 1d4 giant sharks 1d4+1 seaweed blights (vine blight stats, swim 30 ft) or 1 helmed 7 1d3 sahuagin priestesses with 1d3 hunter sharks led by 1 sahuagin horror (swim 30 ft.) 9 baron 8 1 sea hag or roll on Underwater Spirits lvl 1-4 10 2d6 with 1d2 sahuagin priestesses led by 1 sahuagin baron 9 1d2 gibbering mouthers 10 1 water elemental or roll on Underwater Spirits lvl 1-4 Underwater Monsters (Levels 5-10)

d4+d6 2 1 young dragon (black, bronze, gold or green) or 1 morkoth (VGtM) 3 1 spirit naga (swim 40 ft.) or 1d2 cyclops (swim 30 ft.) 4 1 sea troll (swim 30 ft.) with 1d6 merrow 5 1d6 chuuls or 1d2 sea cloakers (swim 40 ft.) 6 1d2 hydras or 1 froghemoth (VGtM) 7 1 aboleth or 1 hydroloth (MToF) 1 water elemental and 2d6 mud mephits or roll on Underwater Spirits 8 lvl 5-10 9 1 seaweed monster (treant stats, swim 30 ft.) 10 1 marid or roll on Underwater Spirits lvl 5-10 Underwater Monsters (Levels 11+)

d4+d6 2 1 empyrean or 1 elder brain (VGtM) 3 1 kraken or 1 retriever (swim 40 ft.) (MToF) 4 1 purple worm (swim 50 ft.) or 1 wastrilith (MToF) 5 1d2 storm giants or 1d4 hydroloths (MToF) 6 1 dragon turtle or 1 morkoth (VGtM) 7 1d3 marids or 1 marilith (swim 40 ft.) Sample8 1 adult dragon (black, bro nze, goldfile or green) or 1 leviathan (MToF) 9 1 aboleth with 1d6 chuul or 1 death tyrant (swim 30 ft.) 10 1 iron golem (swim 30 ft.) or 1 nightwalker (MToF)

9 Underwater Spirits (Levels 1-4) If required give creatures the amphibious trait: Amphibious. This creature can breathe air and water

d4+d6 2 1 water elemental or 1 couatl (swim 90 ft.) 3 1d3 drowned spirits (specter stats with swim 50 ft.) 4 1 water weird or 1 murk demon (shadow demon stats, swim 30 ft.) 5 1d4+1 steam mephits or 1 bone naga (swim 30 ft.) 6 2d4 mud mephits 7 1 sea hag 8 1d4+1 ice mephits or 1d2 sword wraith warriors (MToF, swim 20 ft.) 9 1 sea elf spirit (banshee stats, swim 30 ft.) 10 1 sea hag with... (roll on Beast Encounters) Underwater Spirits (Levels 5-10)

d4+d6 2 1d2 devils of the deep (chain devil stats, swim 30 ft.) 3 Coven of 3 sea hags 1d2 drowned shades (wraith stats with swim 60 ft) and 2d4 drowned 4 spirits (specter stats, swim 50 ft) 5 1d3 sea stalkers (invisible stalker stats, swim 50 ft.) 6 1d4 water elementals 1d2 seaweed blights (vine Blight stats, swim 30 ft) led by 1 7 shambling seaweed (shambling mound stats) 8 1 water elemental and 2d6 mud mephits 9 2d4 drowned knights (wight stats, swim 30 ft.) 10 1 marid

Sample file

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