Fantasy TTRPGs- Starting a Dungeon

Dungeon crawls. Why do they exist and who would build such a thing?


Giving the dungeon, and the module, a backstory.

Whether I’m creating a typical five room dungeon or a massive underground mega sprawl, the first question that always comes to mind is: why? And the why actually goes both ways. Why would anyone in their right (medieval fantasy) mind want to build the complex, possibly underground at all? Furthermore, why would a group of characters want to go into a dank underground complex full of terrible traps and drooling, slobbering monsters?

Now, not every dungeon adventure the party is going to face is necessarily underground. It could be a hedge maze, an old manor, a shipwreck, or something even stranger. The question always remains, why is it there?

Who built it and for what purpose?

Not every dungeon is built for a reason. Some occur naturally. But every dungeon is inhabited for a reason. (Or worse, abandoned for a bigger reason.) I mean, every creature needs a home, right? Even drooling, slobbering, scary monsters gotta live somewhere.

But a true dungeon, a real stereotypical fantasy underground complex, springs to life with a legitimate reason of some sort in mind. I find it important to decide on a cause before I start construction so I know what the centerpiece of the place is going to be. Bear in mind, a truly huge dungeon would take thousands of man hours and gold coins or lots of magic in order to build it safely. Guards and traps are extra, of course.

Then we come to the who. Sometimes it’s obvious from my GM/DM’s perspective that said BBEG or villain needs a cool lair. Sometimes (Out of character) I need a particularly deadly place to stash some epic loot the party might need some time down the road. Other times yet, it’s just for flavor, like a sidetrack or incidental.

The builder’s in-character motive always comes to mind as well. Maybe it’s a tomb full of stone soldiers constructed in memory of a forgotten general. Perhaps a power mad necromancer needed a secluded place to build his golem in peace. (Darn villagers with their torches and pitchforks…) It’s possible a well meaning group of beings long ago wanted to seal away a gate to their realm. It could be the lair of an innocent Ancient Red Dragon that just wanted to keep it’s modest filthy lucre mountain safe before he can donate it to the orphans. Maybe a group of well meaning good samaritans wanted to seal something truly horrific away forever and throw away the key. Still another reason might be to bury a powerful artifact away from those who would abuse its power.

These are mere examples. We could go all day and night coming up with cool reasons to build a dungeon. The history and lore should play an important role in the next step: getting the player characters in the door. To be continued…

Author: Jeff Craigmile

I'm a tabletop role-playing game writer and designer from Des Moines, Iowa always looking for more work. I'm the father of four boys and human to three cats.

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