Destroy the World!? Just how easy is it?

[TravelLog]

I'm interested in finding ways to destroy the D&D worlds. I know about the Hulking Hurler, opening other elemental planes in the center of the earth, and the the anti-osmium bomb. But what other ways are there to destroy the world as a non-epic PC?

[Ziegander]

Do you have a link to this anti-osmium bomb? I've never heard of it.

[SolEiji]

Define the level of destruction.  Complete plantary obliteration (various means)?  Sundering (hulking hurlers)?  Destruction of all possible life (various means)?  Destruction of all sentient and major life (undead swarms)?

Anti-Osmium Bomb... is that the one where you Major Creation antimatter of a dense substance to destroy the world?

[TravelLog]

Here you go: Anti-Osmium Bomb

And as for destruction, I mean total. As in, no planet anymore.

That said, if you have a particularly interesting method of doing any of the others, I'd be happy to hear them. This is more for my own curiosity than a single specific purpose tbh.

[SolEiji]

One method I like is the Black Hole Bomb.  I believe it can be done by 17th. 
Take 1 part Genesis spell, 2 parts Gate, and as large and as dense of a substance you can acquire (neutronium perhaps?).  Cook your Genesis demiplane in a complete vacuum, with ultraheavy gravity in a single direction.  Make a portal horizonal with the planet you wish destroyed.  Then make two gates, persisted as needed, face to face with as little space in between as possible.  To ensure nothing gets in there you might want to perform this either in the depths of space or in a vaccuum sealed chamber (a box of force and removing everything with a gate to the plane of vaccuum works nicely).

What you need to do is drop your dense object through the gate to your demiplane, where it will appear at the top of your demiplane and accelerate from gravity.  It exits via a gate at the bottom of your demiplane, only to immediately fall through the top.

Speedy thing goes in, speedy thing comes out.  Repeat for endless acceleration in a single direction.  Once you have achieved the desired velocity (which since this is acceleration by gravity, I believe can exceed light speed) remove the gate leading to the top of your demiplane.  The object will smash into the ground at such speeds that there is a fair chance that you've compressed the material into a black hole.  Even if you didn't, you've just shot the planet with a giant rail gun slug and probably blew a hole clean through it.  Collect the possibly hyperdense debris and try again.

[Karlton]

I once tried something akin to the black hole bomb, but on the planet surface. I built a vacuum chamber inside permanent Walls of Force, and placed two ring gates on top of each other so that the two gates and the gravitational centre of the planet formed a straight line (It took forever, and I only got it right thanks to divinations and a Limited Wish spell to align toe rings). I then proceeded cover the surfaces to the gates in Walls of Force to drop an adamantine rod through the gates, causing it to accelerate forever. And as speed increases mass, my adamantine rod will eventually reach the mass of a thousand suns and tear Krynn apart with its mighty gravitational force! It may take some time for my doomsday device to work though, that little rod has a lot of acceleration to do before its mass becomes anywhere near high enough to destroy anything, and now that I think about it, I should maybe have done something to make sure that the ring gates themselves wouldn't crumble under the rods mass..

[Childe]

One method I like is the Black Hole Bomb.  I believe it can be done by 17th. 
Take 1 part Genesis spell, 2 parts Gate, and as large and as dense of a substance you can acquire (neutronium perhaps?).  Cook your Genesis demiplane in a complete vacuum, with ultraheavy gravity in a single direction.  Make a portal horizonal with the planet you wish destroyed.  Then make two gates, persisted as needed, face to face with as little space in between as possible.  To ensure nothing gets in there you might want to perform this either in the depths of space or in a vaccuum sealed chamber (a box of force and removing everything with a gate to the plane of vaccuum works nicely).

What you need to do is drop your dense object through the gate to your demiplane, where it will appear at the top of your demiplane and accelerate from gravity.  It exits via a gate at the bottom of your demiplane, only to immediately fall through the top.

Speedy thing goes in, speedy thing comes out.  Repeat for endless acceleration in a single direction.  Once you have achieved the desired velocity (which since this is acceleration by gravity, I believe can exceed light speed) remove the gate leading to the top of your demiplane.  The object will smash into the ground at such speeds that there is a fair chance that you've compressed the material into a black hole.  Even if you didn't, you've just shot the planet with a giant rail gun slug and probably blew a hole clean through it.  Collect the possibly hyperdense debris and try again.

Attempting to remove the gate should result in a random roll as you're not nearly as fast at removing the gate as your object is at traveling. Roll results would dictate what portion (if any) of the object is cleaved from the object, which will result in two separate collisions if this occurs. I'm not a physicist, so I can't tell you what that really changes to have two smaller collisions.

[sirpercival]

There are a few problems with this. 

1) Your object will never reach the speed of light.  Relativistic physics will start to apply once you get anywhere near.
2) You won't be able to hold the gates open for long enough for the object to get near unless you play with time traits on your demiplane, which may or may not be possible with Genesis (and is a can of worms I'm NOT opening here).
3)  Childe's objection isn't quite right, though, since you can just dismiss the gate, you don't have to move them.  However, you have a very very miniscule chance of dismissing the gate while the object is on the correct plane (most of the time it's going to be on the demiplane.  You will almost certainly need something like Hypercognition to do it right, and even then it wouldn't be a given.


If you want to just destroy all life on a planet, forever, take a look at these. 

[SolEiji]

3)  Childe's objection isn't quite right, though, since you can just dismiss the gate, you don't have to move them.  However, you have a very very miniscule chance of dismissing the gate while the object is on the correct plane (most of the time it's going to be on the demiplane.  You will almost certainly need something like Hypercognition to do it right, and even then it wouldn't be a given.

Minor nitpick.  There is a small chance a slice of it will be between gate A and B, in the material.  Most of the time spent it is traveling in your demiplane.  No matter where it is, once you close the portal into the demiplane, the only remaining gate is the one leading out.  If its not on the right plane now (and it probably isn't), it will be in 0.0000000000000001 nanoseconds.

[Childe]

3)  Childe's objection isn't quite right, though, since you can just dismiss the gate, you don't have to move them.  However, you have a very very miniscule chance of dismissing the gate while the object is on the correct plane (most of the time it's going to be on the demiplane.  You will almost certainly need something like Hypercognition to do it right, and even then it wouldn't be a given.

@Percival: I don't assume you're moving the gate(s). That would be catastrophically bad.
But rather, when you dismiss it, you have a chance to cut the object in two as part of it is at the "top" of your demiplane (having just gated into the top of your demiplane) and part is at the "bottom" (about to exit the demiplane). However, given the speed involved, as I said, I can't really say what difference it would make that the second collision would technically occur a fraction of a second later.

[BrianTheBrain]

There are a few problems with this. 

1) Your object will never reach the speed of light.  Relativistic physics will start to apply once you get anywhere near.
2) You won't be able to hold the gates open for long enough for the object to get near unless you play with time traits on your demiplane, which may or may not be possible with Genesis (and is a can of worms I'm NOT opening here).
3)  Childe's objection isn't quite right, though, since you can just dismiss the gate, you don't have to move them.  However, you have a very very miniscule chance of dismissing the gate while the object is on the correct plane (most of the time it's going to be on the demiplane.  You will almost certainly need something like Hypercognition to do it right, and even then it wouldn't be a given.


If you want to just destroy all life on a planet, forever, take a look at these.

I was about to mention this, although building such a machine would still be a nice goal for a BBEG as it would still create a Rhode Island sized explosion as it approached the speed of light.
Also, check out a book called "Elder Evils". It lays out a bunch of apocalyptic scenarios, just be sure you pick an Evil that's way out of your characters rang.

[betrayor]

Well,how much time do we have?
A very large number of disintegrates could do the trick.........

[TravelLog]

I was about to mention this, although building such a machine would still be a nice goal for a BBEG as it would still create a Rhode Island sized explosion.
Also, check out a book called "Elder Evils". It lays out a bunch of apocalyptic scenarios, just be sure you pick an Evil that's way out of your characters rang.

I have the book in fact. It's more that this thread is for ways for the player to do it themselves, rather than get someone/something else to do it for them.

[BrianTheBrain]

Well,how much time do we have?
A very large number of disintegrates could do the trick.........

Now that you mention it, Lords of Madness specifically mentions that Beholders, as a race, have the ability to do this, but don't because they lack the team work skills to pull it off. They then introduce the Hive Mother in a later chapter, who has the ability to force teamwork on her fellow Beholders. (You can't see it, but I'm winking as hard as I can)

Edit: oh woops

I was about to mention this, although building such a machine would still be a nice goal for a BBEG as it would still create a Rhode Island sized explosion.
Also, check out a book called "Elder Evils". It lays out a bunch of apocalyptic scenarios, just be sure you pick an Evil that's way out of your characters rang.

I have the book in fact. It's more that this thread is for ways for the player to do it themselves, rather than get someone/something else to do it for them.

[spacemonkey555]

Don't all the falling/accelerating object tricks suffer from the fact that terminal falling damage/velocity is capped at 20d6?

[SolEiji]

Don't all the falling/accelerating object tricks suffer from the fact that terminal falling damage/velocity is capped at 20d6?

Its capped due to air resistance.  In space, you can accelerate (almost) forever.  Thats why vaccuum sealing the area is always required.

[betrayor]

Also would stacking metabreath feats to infinity help you destroy the world?
Enlarge,Lingering,Spreading breath.........
Of course you would never breathe again but you would have destroyed everything.....

[SolEiji]

Also would stacking metabreath feats to infinity help you destroy the world?
Enlarge,Lingering,Spreading breath.........
Of course you would never breathe again but you would have destroyed everything.....

At the very least you'd destroy all life on it.  I once had this conversation with a poorly written metapower feat which made the area of effect infinite.... so I explained to him how he just managed to kill all life, because even if a few strong people survive, you just murdered most of the food chain and probably all of the plants and other things needed for life.  Enjoy your starvation.

[spacemonkey555]

Don't all the falling/accelerating object tricks suffer from the fact that terminal falling damage/velocity is capped at 20d6?

Its capped due to air resistance.  In space, you can accelerate (almost) forever.  Thats why vaccuum sealing the area is always required.

Frictionless vacuums are fun, but are they statted anywhere? From the dmg, it appears acceleration doesn't add damage past 20d6, but weight continues to accrue damage dice, 1d6 per 200 lb. Doesn't model real physics very well, but then neither do gates, demiplanes, and matter creation spells.

At the very least you'd destroy all life on it.  I once had this conversation with a poorly written metapower feat which made the area of effect infinite.... so I explained to him how he just managed to kill all life, because even if a few strong people survive, you just murdered most of the food chain and probably all of the plants and other things needed for life.  Enjoy your starvation.

We have our extradimensional mansions stocked with 9 course banquets and hero's feasts, let the peasants eat psionic death. 

[sirpercival]

Well, the weight thing is fine.  As the thing goes relativistic its mass will increase