Mindflayer Nautiloid | New Ship for Fifth Edition

The Nautiloid is the standard ship of the line of the various illithid nations and reflects the nature of the race. Its coiled shell provides the comfort of enclosed spaces while protecting the mind flayers from the irritating rays of the sun.



Gargantuan vehicle (90 ft. by 30 ft.)

Creature Capacity 35 crew, 20 passengers

Cargo Capacity 34 tons

Travel Pace 5 miles per hour (120 miles per day)

Abilities Str 20 (+5), Dex 8 (-1), Con 17 (+3), Int 0, Wis 0, Cha 0

Damage Immunities poison, psychic

Condition Immunities blinded, charmed, deafened, exhaustion, frightened, incapacitated, paralyzed, petrified, poisoned, prone, stunned, unconscious


On its turn, the ship can take 3 actions, choosing from the options below. It can take only 2 actions if it has fewer than twenty crew and only 1 action if it has fewer than ten. It can’t take these actions if it has fewer than three crew.

Fire Ballista. The ship can fire its ballistas (DMG, ch. 8).

Fire Mangonel. The ship can fire its mangonel (DMG, ch. 8).

Jettison. The ship drops a bomb at a point directly below it. Each creature within 5 feet of that point must make a successful DC 12 Dexterity saving throw or take 10 (3d6) fire damage.

Move. The ship can use its helm to move with its magical propulsion unit. As part of this move, it can use its naval ram.


Armor Class 15

Hit Points 400 (damage threshold 15)

Control: Spelljammer Helm

Armor Class 16

Hit Points 100

Move up to the speed of the ship’s magical propulsion unit, with one 90-degree turn. If the helm is destroyed, the ship can’t move.

Movement: Magical Propulsion Unit

Armor Class 12

Hit Points 100; -5 speed per 25 damage taken

Speed (magical) flying speed 45 ft.

Weapon: Ballistas (4)

Armor Class 15

Hit Points 50

Ranged Weapon Attack: +6 to hit, range 120/480 ft., one target. Hit: 16 (3d10) piercing damage.

Weapon: Mangonel

Armor Class 15

Hit Points 100

Ranged Weapon Attack: +5 to hit, range 200/800 ft. (can’t hit targets within 60 ft. of it), one target. Hit: 27 (5d10) bludgeoning damage.

Weapon: Naval Ram

Armor Class 20

Hit Points 100 (damage threshold 10)

The nautiloid has advantage on all saving throws relating to crashing when it crashes into a creature or any object. Any damage it takes from the crash is applied to the navel ram rather than to the ship. These benefits don’t apply if another vessel crashes into the nautiloid.

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Art by Wizards of the Coast.

3 thoughts on “Mindflayer Nautiloid | New Ship for Fifth Edition

  1. Pretty sure WoTC are going in that direction anyway based on DotMM, GoS, and BG:DIA. So we might get official stats before too long.

    But hey, that’s pretty cool anyway! and nice work using the original Spelljammer map!

  2. Creature Capacity should be “15 Crew, 20 passengers”, not “35 crew, 20 passengers” A Nautiloid’s gravity bubble can only hold enough air for 35 medium sized creatures, with 55 creatures on board they’d quickly run out of air.

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