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Choke Ooze

Choke Ooze CR 17

This steaming mass of ooze churns and writhes in a pale tidal mass of anger and hunger. Great chunks of ooze boil upwards and splash back into its horrific bulk.

XP 102,400
N Colossal ooze
Init +5; Senses blindsense (vibration) 120 ft., blindsight (vibration) 60 ft.; Perception +29


EAC 29; KAC 31
Fort +19, Ref +15, Will +15
Defensive Abilities seething skin (2d12); Immunities acid, ooze immunities


Speed 30 ft.
Melee slam +31 (4d12+28 A plus envelop; critical corrode 2d12)
Multiattack 3 psuedopods +25 (3d12+28 A; critical corrode 2d12)
Space 30 ft.; Reach 20 ft
Offensive Abilities breath weapon (70-ft. cone, 9d12 A, DC 22, usable every 1d4 rounds), envelop (4d12+28 A, EAC 29, KAC 27, 95 HP)


Str +11, Dex +5, Con +8, Int –2, Wis +0, Cha +0
Skills Athletics +34, Survival +29
Other Abilities air production


Air Production (Ex)

As a natural byproduct of its metabolism, a choke ooze constantly discharges breathable air into its surroundings.

This provides breathable air within 30 feet of a choke ooze even in a vacuum and diminishes the effectiveness of gases and clouds within 30 feet.

Creatures within 30 feet of a choke ooze gain a +2 circumstance bonus on saving throws against gaseous effects and duration of such effects are halved within 30 feet of the ooze.

Envelop (Ex)

This ability functions as swallow whole, except that the choke ooze can continuing using envelop normally after a creature cuts its way out.

Seething Skin (Ex)

A creature that hits the choke ooze with a non-reach melee weapon is dealt 2d12 acid damage. Any kinetic melee weapon that strikes the ooze is dealt the same amount of damage, ignoring half of its hardness.


Environment any
Organization solitary or farm (2–5)

Usually these creatures are found in two ways— cultivated or wild. The latter is rare in the extreme for reasons outlined below. Cultivated choke oozes are usually massive—to enable them to yield the maximum amount of harvest. Sometimes smaller versions of these oozes are found cultivated—often where a portable form of air is required in remote locations.

It’s rumored that the first true choke oozes were distilled and filleted by the aboleth, used to create vast sub-oceanic domes of air for visitors and airbreathing slaves. Another conjecture has the drow creating them through alchemy. Whatever caused their creation, there seems little doubt that choke oozes were conceived, not discovered.

Their fundamental purpose—and the reason for their being found in such vast quantities when they are met—is their ability to convert sustenance into breathable air. In general, consuming a creature produces enough breathable air to supply a similarly sized creature for a month. This boon not only causes their profligacy, but also may explain why they are so rarely encountered in the wild or randomly met.

So great is this boon that the choke ooze is greatly prized, and even an immature specimen may fetch a king’s ransom amongst those with a vested interest in bringing air to remote locations.

There are, of course, dangers with the ooze. The first is its hunger—a choke ooze is never sated, its hunger a constant gnawing ache that is never satisfied. This need makes securing the ooze of the greatest importance, since they are drawn to flesh—any flesh—to consume. Unless held within an appropriately tough—usually ceramic or glass— container, they soon run rampant.

Section 15: Copyright Notice

Alien Bestiary (Starfinder) © 2018, Legendary Games; Lead Designer: Jason Nelson. Authors: Anthony Adam, Kate Baker, John Bennet, Eytan Bernstein, Robert Brookes, Russ Brown, Duan Byrd, Jeff Dahl, Robyn Fields, Joel Flank, Matt Goodall, Robert J. Grady, Jim Groves, Steven T. Helt, Thurston Hillman, Tim Hitchcock, Nick Hite, Daniel Hunt, Mike Kimmel Marshall, Isabelle Lee, Jeff Lee, Lyz Liddell, Jason Nelson, Richard Pett, Tom Phillips, Alistair J. Rigg, Alex Riggs, Wendall Roy, Mike Shel, Neil Spicer, Todd Stewart, Russ Taylor, Rachel Ventura, Mike Welham, George Loki Williams, Scott Young.