Gelatinous Cubes

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Gelatinous Cubes
Gelatinous Cube
Gelatinous Cube, from Ultima I manual
Only appearance: Ultima I

The gelatinous cube is a subterranean creatures found in the dungeons of early Sosaria in Ultima I.


Gelatinous cubes are creatures composed entirely of a thick, caustic, viscous substance which enables the digestion of their prey. Adapted in shape and size to just fit within the corridors which they inhabit, these consummate omnivores tirelessly scour the underground seeking out sustenance, devouring anything which they intersect with. Due to their translucent appearance and the dark environment which they inhabit, cubes are often difficult to see, and many an unwary adventurer has fallen prey to these marauding beasts, whose corrosive exteriors burn fiercely enough to dissolve even the sturdiest of armour.

It is unclear if the gelatinous cube is actually square in its dimensions, or if, like its eponymous counterpart within Terran fiction, it is an amorphous being which adjusts its proportions to fit its habitat. Little more is known about these creatures, as they have long vanished from the lands that eventually came Britannia, disappearing from human sight shortly after the demise of the wizard Mondain.


A Gelatinous Cube approaches
Called 'dungeon-sweeper' by some, the Gelatinous Cube is a subterranean dweller that roams corridors in search of food. Their bodies are composed of a clear, corrosive, jelly-like substance which renders them difficult to see, but they may sometimes be detected by the remnants of armour or debris contained within them. They are omnivores, digesting anything they find after absorbing it into their massive bodies. Contact with a Gelatinous Cube hath ruined the armour of many a hardy warrior.


A gelatinous cube from the FM-Towns port of Ultima I.
  • Gelatinous cubes are taken directly from the table-top role playing game, Dungeons & Dragons. Within D&D canon, these creatures first appeared in the original Monster Manual released for the game in 1977. They are near identical to their Sosarian analogues, save that unlike the cubes of Ultima, the monsters of this classic game are incapable of digesting non-organic matter, and are hence little threat to armour and arms.[1]

See Also[edit]


  1.  "Gelatinous Cube". Wikipedia. Retrieved 2010-11-22.