In this Earth-like world, gunpowder was invented just recently. After a secret lab exploded while trying to create a bigger bomb, an apparently very angry titan suddenly rose from the rubble. Luckily, he (or she) has no legs (that we can see) and never tries to walk anywhere. He (or she) has been content just sitting there wailing and spewing lava constantly for the last 5 years.

Last month, however, he suddenly changed tactics. He somehow molded lava into big, very dense rocks and threw them all over the world. His throw could easily destroy a town a continent away. Yes, his throwing skill is very awesome.

Maybe some heroes, or some armies, one day could vanquish him (or it). Today, however, we civilians only want to survive. How would we adapt to living with this monstrosity? Not all of us could move to a far, far away continent.

Info: the titan is a little smaller than Mount Fuji. The technology level is about the same with Earth when we first invented bomb.

Edit: By titan, I mean a huge rock giant, spewing lava through his mouth. By molding, I mean he spit lava to his hands (yes, disgusting) and somehow make it dense, then throw at anything that move, or if no target in sight, just aim randomly. His throw rate is about 1.5 a day, a bit slow, but he is huge, and the rock is really big.

In the 5 years that he was crying, the whole area around him was destroyed. All people dead. The further ones count themselves lucky. The current state of the area around the mountain is similar to Mordor.

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    $\begingroup$ Does the titan have vision, is his projectiles target-able or random ? If random then nothing major would change, probability that random projectiles hit is very low, less number of cities in per-medival times. $\endgroup$
    – Chinu
    Commented Aug 4, 2016 at 8:49
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    $\begingroup$ is the titan a flesh-and-bone type humanoid? (would make him more approachable in terms of intimidation against communicating with him) $\endgroup$
    – Sarfaraaz
    Commented Aug 4, 2016 at 13:09
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    $\begingroup$ Assuming this titan is pulling up rocks around him big enough to destroy cities wouldn't he just dig himself into a pit rather quickly and solve our problem? $\endgroup$
    – DasBeasto
    Commented Aug 4, 2016 at 13:12
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    $\begingroup$ How about giving the Titan cookies? Maybe it will make it calm down a bit. $\endgroup$ Commented Aug 5, 2016 at 10:28
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    $\begingroup$ @Sarfaraaz still, with that kind of velocity, it would burn at launch. This is why we can't ballistic projectiles in space. See space guns article on various attempts. $\endgroup$
    – njzk2
    Commented Aug 5, 2016 at 14:39

8 Answers 8


Move outside the Titan's visual range.

If the Titan has eyes on the top of his body, and we assume that is 12,000 feet (just below the height of Mount Fuji), he could only see about 134 miles or 215 km (with some variation for geography).

Even in a low-technology era, it should be easy for people to migrate out of the Titan's sight.

I suspect the Titan would be far less interested in throwing rocks when he couldn't see any targets.

But let's suppose he continues:

Live with the risk of dying from random rocks.

The Titan can throw rocks "all over the world". Let's assume that he distributes them randomly.

Let's assume that he can destroy an area of four square miles / 10 square km with each rock.

How often can he throw them? Making a super dense, huge lava rock seems difficult, as does throwing it thousands of miles. But let's assume it's little more than making a snowball to him, and he can throw one once a minute, 24 hours a day.

With these very generous assumptions, and if he never hits the same spot twice, this would enable him to destroy 1% of the earth's surface every year. (He would, however, have to hit the same place again sometimes, otherwise people could just move into the areas he had already hit. So he would be able to target slightly less area than that).

This is a non-trivial risk, but it is not a level of risk that would destroy humanity. Titan rock lobs wouldn't even be the biggest cause of death in a pre-modern context.

(This also assumes an unending supply of lava. I suppose it is possible that he is fed by underground magma that never stops flowing, but it seems more likely that he will run out, or at least have to slow the rate of throwing, eventually).

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    $\begingroup$ That amount of volcanism and rock dust might cause a greater climate effect than direct impacts do. $\endgroup$
    – Yakk
    Commented Aug 4, 2016 at 13:38
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    $\begingroup$ Well considering your own reasoning : That thing throws one bowl of lava each minute, every hour every day. Then it fires 1440 times a day, assuming it can touch 10 square kilometers per hit, it can cause huge damages. By targeting wisely, he could hit the most populated areas of the world. During the middle age, for Europe there was an average of 40-50 inhabitants per square kilometer. Which means 236 520 000 humans hurt by that giant each year. It's huge, at the time the planet is populated by merely 500 000 000 humans. $\endgroup$
    – Kaël
    Commented Aug 4, 2016 at 13:39
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    $\begingroup$ @Kaël how would the Titan know where Europe is, and know that it is populated? He can't see it, and I see nothing that suggests he would have access to knowledge about the world. My assumption is that, beyond his line of sight, he is simply throwing blindly. Most of the rocks are going to land in water or depopulated areas. $\endgroup$
    – user16107
    Commented Aug 4, 2016 at 13:58
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    $\begingroup$ @Kaël I'm going with the assumption that the Titan doesn't have any knowledge or supernatural power that isn't mentioned. He sounds kind of dumb from the description. Also, I'm taking that as a statement merely of the power and destruction of the throws, rather than the ability to actually aim at a village. Admittedly there is room for interpretation of the question, and others may see it differently. $\endgroup$
    – user16107
    Commented Aug 4, 2016 at 14:09
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    $\begingroup$ @Kaël this discussion only proves that the question's assumptions need to be clarified. the answer cannot cover where question fails to address. $\endgroup$ Commented Aug 4, 2016 at 15:35

Titans are gods, and gods can be placated with sacrifice.

So instead of getting your steaks from the supermarket we all head down to the local abattoir, and honour the gods properly. You get your steak and along with it you get some bones and fat (please remember to pay the priest on the way out) In front of the abattoir there is the fire pit for burning the fat and bones. Try to fold the fat around the bone so it burns well. Remember to grovel a bit (gods like a bit of "I'm not worthy") and remind the titan that there are lots of other places to throw stones, like the next city just over there.

Or, if you are feeling bolder, you could direct your prayers at one of the Olympians. They have form in dealing with this kind of thing.


Some ideas :

  1. Abandon cities, live far away from each other : if one of this rocks just fall, then it'll kill less people, and thus will reduce the risk of being killed by that Titan

  2. Build your cities on the flank of some mountains. Your titan can't move, thus there are some locations on earth that he can't reach with his rock I guess. Should you place a mountain between you and your city, the rock it throws would just crash on that mountain, probably causing some damages, but not destroying whole cities.

  3. Build underground towns. It would be quite hard I admit, but living in caves is still better than being crushed by giant rocks. Your society would look like what dwarves are in most fantasy games, living underground, and just like in point 2 to survive they could just create farms behind mountains, to protect their food supply from being destroyed by big rocks.

  4. If your giant can't move perhaps he can't turn too ? In such case you could just build cities behind him, and by that I mean outside its 180° arc of vision.

  5. Become nomadic, if you constantly moves then the chances the titan will hit something is tiny, he will just never be able to aim at something moving, even slowly.

Unfortunately with such a low technology level there are not many ideas. On the other end, if your universe is a bit steam-punk like, there could be plenty other possibilities.

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    $\begingroup$ the impact of the rocks could cause earthquakes. I would caution against moving underground. $\endgroup$
    – Sarfaraaz
    Commented Aug 4, 2016 at 10:04
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    $\begingroup$ Yup, that's a risk. Also, if that giant came from under the soil, what else could people in that world find, or awake while digging ? :p A Balrog of Morgoth perhaps ? $\endgroup$
    – Kaël
    Commented Aug 4, 2016 at 10:08
  • $\begingroup$ The mountain idea seems nice, until you realize it makes a nice ramp for the rock to roll down. The top of the mountain would be hardest to hit, but not a very hospitable place to live. $\endgroup$
    – user16107
    Commented Aug 4, 2016 at 12:21
  • $\begingroup$ Well to do that you need to be extraordinarily precise. Hitting a town is one thing, throwing a rock on a target you can't see, so that the rock just stops on top of the mountain and then just roll down the said mountain, in the good direction. Well, it might happen for sure. But it's hard. Try to do something while playing bowls, it's not easy. $\endgroup$
    – Kaël
    Commented Aug 4, 2016 at 12:33
  • $\begingroup$ @Sarfaraaz I can't imagine a lava based rock having that much devastation to the Earth's crust. One of the largest nuclear tests left a crater 243 feet (74 meters) deep. I didn't do any maths (lets be honest I don't know how) but I can't imagine a pumice type rock could have a bigger impact than a bomb like that. $\endgroup$
    – Timmy
    Commented Aug 4, 2016 at 14:01

I have been thinking about this and if the Titan actually aims and throws accurately and is actually hopefully quite dumb.

Then all all we need to do is hide behind a mountain. Provided he can't throw it linearly so that it goes across the world and hits us from behind

A: his only offense is rocks, with an obstacle in the way. What will happen then is that in his attempt to kill you, he will continuously lob giant rocks at you. Fortunately for you, this rocks are gonna pile up becoming a shield that grows bigger and bigger over time.

B: Operation Typhon. Provided your fine losing a large amount of lives for the sake of humanity. Start building the biggest stone wall that encloses the Titan inside[Since the Great Wall of china was built back then, I'm sure we can build this right?]. Even if he lobs rocks at you, it only serves to build the wall higher. As the wall gets higher, he will either keep lobbing rocks at the wall or lob rocks high up to land on the wall, this means the amount of space between him and wall gets smaller and smaller. In this sense, we are building him a pseudo volcano that chucks rocks instead of lava. One day when humanity builds a mountain 3,500 m tall or higher, the Titan has nowhere to chuck rocks and can only throw them up. Resulting in his own rocks dropping on him and burying him underneath. From then on, the legend of the Titan under the mountain of man was passed on as a legendary feat of humanity.

C: Project Poseidon. Build a man made canal from the sea that extends to the Titan, cooling down the lava and depriving him of his rocks. Tho this might be a lil difficult if his rocks actually block the canal. Now considering that he his somehow spewing magma, this should mean that either he sits on converging continental and oceanic plates unless his in the middle of somewhere or under the sea. Which in theory means his relatively close to the sea. Hopefully... But this method is highly unreccomended.

  • $\begingroup$ Well he can breath lava. it' his base ability that he uses to create the rocks. lava filled rocks would be like deadly lava versions of water balloons. splash over a mountain or set the mountain forest on fire. $\endgroup$
    – Sarfaraaz
    Commented Aug 4, 2016 at 12:58
  • $\begingroup$ @Sarfaraaz en.wikipedia.org/wiki/Volcanic_bomb instead of water balloons. A and B should still be feasible, C is kinda impossible since about 1000 years later we still took 10 years to build a 193 km canal $\endgroup$
    – Skye
    Commented Aug 4, 2016 at 13:01

You haven't mentioned whether the titan is aiming his rocks or just throwing them randomly.

If it's random, the odds of hitting a town would be tiny. The most important change would be to stay away from coastal areas or build high dykes against the risk of a big splash wave.

If the titan is aiming at humans and their buildings, it might be possible to build wooden decoys and/or ride around bearing torches to keep it occupied, especially if the rate of making and throwing boulders is low. A lot of that depends on how acute the titan's vision is and how smart it is. If it learns quickly not to waste rocks on decoys, there will be little choice except to hide behind other mountains, out of view of the titan. Even that may not work for long if it figures out where the humans probably went and starts lobbing the rocks with a high arc, hitting the backs of the mountains.


Divert the lava

The titan's source of power is the lava coming from underground. If this has been flowing for 5 years, either the original explosion happened high on a mountain, or the titan is lifting himself up as the lava builds up around him.

Either way, digging into the mountainside and diverting the lava through a lower man-made side vent will rob the titan of ammunition.

This digging is dangerous, and once the digging team breaks into the main conduit, there will definitely be casualties. Perhaps these offered in sacrifice will be enough to appease the titan back to sleep.


Assuming when you say:

when we first invented bomb.

you mean explosives (China and its fireworks :P), that would put the era you describe somewhere after the 10th century.

Religion played a huge part of peoples lives at that time, so, most would assume it's Judgement day and either despair or repent.

Some might take up satanism assuming that the titan is satan and requires sacrifices and maybe even inform him of where to aim or take it upon themselves to kill people in cities assuming its what the titan wants.

I think people would not be very organised and successful till the titan gives up it's rant and perhaps falls back into dormancy.

I also think people would learn to figure out or detect the titan's toss by either hearing or some kind of communication network (fireworks or smoke signals). They might live on cliff off hangs with ropes so housing and people could have a chance of surviving the impact.

In terms of lifestyle they may be like the native americans. Lifestyle based on spirituality.

With other less adaptive animals dying off I would think they would take to surviving off of the sea. Seaweed and fish.

Monkeys might become the main animal to walk the land as I would think they are the next most adaptable species in the world.

  • $\begingroup$ By bomb, I mean the kind that explode and kill people and was used for war, not the pretty ones. $\endgroup$
    – Ngoc
    Commented Aug 7, 2016 at 7:15

Trick the giant into throwing one rock into an orbit

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around earth so that he would hit himself.

  • $\begingroup$ The titan's head is 3.5 kilometers above the Earth's surface. There's still plenty of athmosphere in the way, so the mete... - I mean, projectile - wouldn't reach the entire way around. And if you try elliptical orbit, well, the LEO orbital period is 1.5 hours and the titan would have moved by then, simply by virtue of Earth rotating. Which gets me thinking, maybe I should write an answer. $\endgroup$ Commented Aug 5, 2016 at 15:20
  • $\begingroup$ @JanDvorak the titan cannot move. Given that the destruction of one projectile can destroy an entire city, there's no escape from it for a grounded titan. $\endgroup$
    – null
    Commented Aug 5, 2016 at 15:27
  • $\begingroup$ The titan cannot move, but the Earth below him does. What I'm saying is that even with a perfect pitch and aim there's no way he could hit himself. If he aims straight, his projectile will burn up in the atmosphere. If he aims high, he'll be 30 angular degrees short (well, unless he's in a high latitude) (and his projectile still burns up in the atmosphere). $\endgroup$ Commented Aug 5, 2016 at 15:42
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    $\begingroup$ You can't throw a passive projectile into orbit. As soon as it's clear of the atmosphere it will follow an elliptical path which will bring it back into the atmosphere. It might be possible to coordinate with the rotation so he hits himself, or to get him to throw rocks in such a way as to stop the rotation. But it might be more interesting to find a way to ride inside the rocks and get a low-tech space program. $\endgroup$ Commented Aug 5, 2016 at 16:29

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