So people have asked me "how do typical dungeon crystals advance so fast?" Well the short answer is:

When a dungeon crystal is born they have no real thoughts. And so they do the only thing that dungeon crystals can do, build a dungeon.

They do this non-stop, 24/7, until they start to have thoughts. Then they do the same thing, just smarter. And so while some dungeons that you guys know waste a bunch of time crying and just pure wasting time. All other dungeons don't ever stop to smell the roses. They just grow their dungeon, one room at a time.

And there you have it, the short answer.

Now if you want you can skip the rest of this 'side story' if you really want to. It is pretty much just a very long answer to the above question. Maybe some other details about the world of Terra that won't have any effect on the actual story. I can promise you that nothing like that will appear.

So without farther ado! The long answer:

After an unknown amount of years mana crystals in areas that have a high amount of mana will grow larger and larger. While pockets of mana crystals that have been sighted as being tens of meters large, almost none of these mana crystals end up being as dungeon crystals.

The reason for this is fairly simple, cracks.

A mana crystal must be one meter tall without having any impurities in it at the very least.

Let's just say that ninety nine percent of mana crystals have some form of impurities in it. Making mana crystals that turn into dungeon crystals very rare.

There have been a few cases of dungeons appearing in places with not the best mana concentration, but those are few and far between. Most people tend to blame it on higher powers that no mortal can even understand.

Once a dungeon crystal has formed it gains the simplest of thoughts. Pretty much just the basic emotions of happy or sad. Sometimes even anger, but those dungeons don't last that long once exposed to the intelligence races of the world of Terra due to their nastier monsters. The ones that do last a long time are some of the scariest things in the world of Terra.

Those kinds of dungeons tend to have strong demon monsters, and other strong monsters of that origin.

In the following days after the dungeon crystal starts to think for itself, they quickly find out their innate ability to remove the dirt around them.

Soon after that though their mana light starts to run low after being used too many times, making it feel like crap. With no knowledge of anything it will freak out and beg to feel like normal.

It tries a bunch of different things until one finally works. Absorbing the mana around it. In most cases this are mana crystals that didn't end up making it to the dungeon crystal stage of non-life.

While it absorbs the mana around it, the dungeon crystal will start to feel amazing. For all it knows that feeling is the best feeling in the entire world!

Not knowing what else to do it goes back to removing the ground around itself. Quickly the crappy feeling of having little to no useable mana comes back up again. This time though it knows what to do.

And so starts the cycle of refilling the mana light for the dungeon crystal to feel amazing, then using up the mana light until it feels crappy again. Rinse and repeat.

The dungeon crystal will do this almost never ending cycle until it starts to have its own thoughts instead of just running on its emotions. This is the moment in time when most dungeon crystals have reached crystal rank five. The true start of a dungeon crystal.

Now with its own thoughts it will start to think of other ways it can reduce the mana light so it can have the amazing feeling of refilling the mana light, only this time it wants to make that feeling happen more often. So what is the next step after there is at least a room or two?

Making some monsters. Though the dungeon crystal doesn't know this just yet.

So naturally after some experimenting with itself, the dungeon crystal finds another way to reduce its mana crystal. And it then makes it first monster.

With this monster now inside its dungeon sense it will react in many different ways depending on its personality. Even if that personality has had little to no development.

Most dungeon crystals are naturally curious with only the angry dungeon crystal that turn into demon dungeons wanting to destroy anything that they feel as a threat. So in the end most dungeons end up watching their first monster for awhile before wanting another monster.

This first monster is typically random depending on where the dungeon crystal was born. The small amount of jungle on Terra typically have cat dungeons, forest dungeons have goblin mainly, slimes end up anywhere, and the only two found underwater dungeons both of fish.

Eventually as the dungeon crystal gains more intelligence it will somehow reach the surface or some kind of cave that will introduce the dungeon to the world. Most dungeons having been found by the smarter races end up being raided for the dungeons riches.

Which mainly means the monster cores and the few item drops from the monsters killed. There are also some people that even mine mana crystals despite them being one of the hardest minerals to mine. Most miners not even caring for them after attempting at least once.

Also with them breaking easily after leaving the area they were made in doesn't really help the miners that still try to mine them.

After being exposed to the outsiders raiding its depths, the dungeon crystal with its intelligence being close to a humans, typically they will start to hate the ones that visit it daily. This leads the dungeon crystal to make it harder for the outsiders to advance forward.

Making the dungeon more complex, increasing the amount of monsters inside its rooms, evolving the monsters to make the difficultly of the dungeon increase two maybe even three fold.

All of this boils down to the dungeon crystal not wanting the outsiders to reach the bottom of the dungeon, while the outsiders try over and over again to reach it. So the dungeon crystal keeps growing.

Eventually the outsiders win and they kill the dungeon crystal by taking the dungeon crystal outside of the dungeon. More often then that the though the fight never ends and the dungeon keeps growing and growing.

Once past a certain point wars against the dungeon will appear as the races attempt to do massive scale raids against the dungeons that they feel are too big of a threat to the kingdoms and its people. There have been many wars like this that are written down in the history of Terra.

The race with the most wars of this nature are the Titans. Having their territory being mountainous with a couple volcanoes spawning the occasional demon dungeon.

And people wonder why they produce the best armies amongst the top three humanoid races.

Then we have the last and rarest of outcomes that happen after a dungeon lives long enough with outsiders raiding it daily. An mutual agreement.

While not always mutual, where one party benefits more than the other. Agreements form when wise people from a smarter race attempts to tend the hate that the dungeon crystal has naturally formed against the outsiders.

And so the dungeon crystal and the outsiders both work together to grow along side one another, without having either side trying to kill the other.

With that the life of the average dungeon side story is complete, with even a little bit of extra detail added in that wasn't really needed.