Silly and unusual question


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silly and unusual question but what would happen if a gelatinous cube were to move over a large metal great in the floor of a dungeon?


northbrb wrote:
silly and unusual question but what would happen if a gelatinous cube were to move over a large metal great in the floor of a dungeon?

My guess? Depends on the viscosity of the cube...

They can adhere themselves to walls without falling off or changing shape, so it's reasonable to assume that the cube could choose to not fall through the grate. However, considering the mutable shape, and the fact that metal can pass through it, it could probably pass through the grate if it so chose...


Stalchild wrote:
northbrb wrote:
silly and unusual question but what would happen if a gelatinous cube were to move over a large metal great in the floor of a dungeon?

My guess? Depends on the viscosity of the cube...

They can adhere themselves to walls without falling off or changing shape, so it's reasonable to assume that the cube could choose to not fall through the grate. However, considering the mutable shape, and the fact that metal can pass through it, it could probably pass through the grate if it so chose...

would this turn the one big cube into a bunch of little slivers that are just as alive as the cube was or would this do any damage at all to the cube?

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northbrb wrote:
Stalchild wrote:
northbrb wrote:
silly and unusual question but what would happen if a gelatinous cube were to move over a large metal great in the floor of a dungeon?

My guess? Depends on the viscosity of the cube...

They can adhere themselves to walls without falling off or changing shape, so it's reasonable to assume that the cube could choose to not fall through the grate. However, considering the mutable shape, and the fact that metal can pass through it, it could probably pass through the grate if it so chose...

would this turn the one big cube into a bunch of little slivers that are just as alive as the cube was or would this do any damage at all to the cube?

No harm to the cube if it chose to do this. (at least from my view)

I could also see a cube starting below the grate and coming up to catch stuff above it.

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northbrb wrote:
Stalchild wrote:
northbrb wrote:
silly and unusual question but what would happen if a gelatinous cube were to move over a large metal great in the floor of a dungeon?

My guess? Depends on the viscosity of the cube...

They can adhere themselves to walls without falling off or changing shape, so it's reasonable to assume that the cube could choose to not fall through the grate. However, considering the mutable shape, and the fact that metal can pass through it, it could probably pass through the grate if it so chose...

would this turn the one big cube into a bunch of little slivers that are just as alive as the cube was or would this do any damage at all to the cube?

I'd rule no damage to the cube. It would start to remerge around the bars of the grate as it oozed downward.


Would be hilarious to see the party go Whiskey tango foxtrot as it gets cubed and they just wiggle around for a bit before reforming.


Gelatinous cubes are just a slime. Ordinary slime can flow through a grate uninjured so I imagine a cube can do the same.

I think one of the nastiest traps I ever saw was a vertical pit trap. Covered. Very easy for someone to walk onto it and trigger the trap, falling into a deep vertical shaft that measured 10'x'10 and about 70 feet deep. At the bottom was about 2 feet of water, more than enough to drown in. Halfway down was a gelatinous cube.

So you fall in and hit the cube. You're falling fast enough to pass right through it, but as you do, you risk becoming paralyzed. At low-levels, there is a significant chance of paralysis. Then you fall the rest of the way down and drown in the water - it's hard to not drown when you're paralyzed.

If you manage to make the save, you take 4d6 from the fall (the water reduces the damage) and now you still have to deal with the cube sliding down the shaft to eat you, and your buddies up above will try to throw down ropes but those just kind of splat on the top of the cube and never reach you. It becomes a 1 vs. 1 fight with the cube, and the cube has gravity on its side so you are automatically engulfed, with your friends too far away to even help (and chances are that the cube is probably invisible to them at that distance anyway).

And since the pit is 70' deep, even your buddies with darkvision can't see you down there. Passing through the cube and into the water extinguishes any ordinary torches so if you don't have magical light, you're in pitch black darkness, alone, and your friends can't even hear you scream (the cube muffles sound - the trap suggested a -20 penalty on listen checks).

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DM_Blake wrote:

Gelatinous cubes are just a slime. Ordinary slime can flow through a grate uninjured so I imagine a cube can do the same.

I think one of the nastiest traps I ever saw was a vertical pit trap. Covered. Very easy for someone to walk onto it and trigger the trap, falling into a deep vertical shaft that measured 10'x'10 and about 70 feet deep. At the bottom was about 2 feet of water, more than enough to drown in. Halfway down was a gelatinous cube.

So you fall in and hit the cube. You're falling fast enough to pass right through it, but as you do, you risk becoming paralyzed. At low-levels, there is a significant chance of paralysis. Then you fall the rest of the way down and drown in the water - it's hard to not drown when you're paralyzed.

If you manage to make the save, you take 4d6 from the fall (the water reduces the damage) and now you still have to deal with the cube sliding down the shaft to eat you, and your buddies up above will try to throw down ropes but those just kind of splat on the top of the cube and never reach you. It becomes a 1 vs. 1 fight with the cube, and the cube has gravity on its side so you are automatically engulfed, with your friends too far away to even help (and chances are that the cube is probably invisible to them at that distance anyway).

And since the pit is 70' deep, even your buddies with darkvision can't see you down there. Passing through the cube and into the water extinguishes any ordinary torches so if you don't have magical light, you're in pitch black darkness, alone, and your friends can't even hear you scream (the cube muffles sound - the trap suggested a -20 penalty on listen checks).

This...this...is GENIUS!!! It brings tears to my eyes as a veteran GM. I may steal this trap for an upcoming adventure...

Kudos to whoever created this trap.


DM_Blake wrote:

Gelatinous cubes are just a slime. Ordinary slime can flow through a grate uninjured so I imagine a cube can do the same.

I think one of the nastiest traps I ever saw was a vertical pit trap. Covered. Very easy for someone to walk onto it and trigger the trap, falling into a deep vertical shaft that measured 10'x'10 and about 70 feet deep. At the bottom was about 2 feet of water, more than enough to drown in. Halfway down was a gelatinous cube.

So you fall in and hit the cube. You're falling fast enough to pass right through it, but as you do, you risk becoming paralyzed. At low-levels, there is a significant chance of paralysis. Then you fall the rest of the way down and drown in the water - it's hard to not drown when you're paralyzed.

If you manage to make the save, you take 4d6 from the fall (the water reduces the damage) and now you still have to deal with the cube sliding down the shaft to eat you, and your buddies up above will try to throw down ropes but those just kind of splat on the top of the cube and never reach you. It becomes a 1 vs. 1 fight with the cube, and the cube has gravity on its side so you are automatically engulfed, with your friends too far away to even help (and chances are that the cube is probably invisible to them at that distance anyway).

And since the pit is 70' deep, even your buddies with darkvision can't see you down there. Passing through the cube and into the water extinguishes any ordinary torches so if you don't have magical light, you're in pitch black darkness, alone, and your friends can't even hear you scream (the cube muffles sound - the trap suggested a -20 penalty on listen checks).

Nice! How was the cube suspended halfway down the pit though?

Dark Archive

DM_Blake wrote:

Gelatinous cubes are just a slime. Ordinary slime can flow through a grate uninjured so I imagine a cube can do the same.

I think one of the nastiest traps I ever saw was a vertical pit trap. Covered. Very easy for someone to walk onto it and trigger the trap, falling into a deep vertical shaft that measured 10'x'10 and about 70 feet deep. At the bottom was about 2 feet of water, more than enough to drown in. Halfway down was a gelatinous cube.

So you fall in and hit the cube. You're falling fast enough to pass right through it, but as you do, you risk becoming paralyzed. At low-levels, there is a significant chance of paralysis. Then you fall the rest of the way down and drown in the water - it's hard to not drown when you're paralyzed.

If you manage to make the save, you take 4d6 from the fall (the water reduces the damage) and now you still have to deal with the cube sliding down the shaft to eat you, and your buddies up above will try to throw down ropes but those just kind of splat on the top of the cube and never reach you. It becomes a 1 vs. 1 fight with the cube, and the cube has gravity on its side so you are automatically engulfed, with your friends too far away to even help (and chances are that the cube is probably invisible to them at that distance anyway).

And since the pit is 70' deep, even your buddies with darkvision can't see you down there. Passing through the cube and into the water extinguishes any ordinary torches so if you don't have magical light, you're in pitch black darkness, alone, and your friends can't even hear you scream (the cube muffles sound - the trap suggested a -20 penalty on listen checks).

That is... Horrifying... and EVIL! I LOVE IT!


PuddingSeven wrote:

Nice! How was the cube suspended halfway down the pit though?

If I remember correctly, at least in 3.5, the Cube could move up and down walls as easily as it could across ground. So, still really slow, but not bad.

A simpler variation on this trap that I've seen was a straight drop into a gelatinous cube, or dropping a cube out of a chimney and onto the party.

Hmm... Perhaps a double trap? Fall through the cube, into the water, drop a rock over the hole created to seal it? Set a timed-release on the falling stone so that it would reset after enough time for the cube to digest?

Dark Archive

10' x 10' x 10' pit trap with a cube in it covered on top with a nice layer of sand (so the acid does not eat through right away). Perception check to notice any difference from the rest of the sandy floor, and one step of doom later.....

grating at the bottom drops all the coin and gems to the hoard below.

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