Looking for ideas of things that can be found in sewers. What could be down there?

I’m prepping next session in my multi genre gonzo game and they’ll be doing a dungeon crawl through the sewers of an important city. What could be some cool encounters or plot hooks that could be found down there?

2 Likes

Depending how “out there” your world is, what about the classic mutated reptile? Perhaps a mutant crocodile, or maybe evidence of reptile people living down there?

2 Likes

There has to be some larger space that has been occupied by a secretive group of thieves or assassins. They won’t take kindly to their lair being found. This sort of encounter sets up a couple nice battles, a few choice loot opportunities, and a potential recurring enemy down the road, as members in the “network” may track down the party at any time. This encounter might also lead to a new quest line: “omg, they have plans for killing the king’s eldest son at the new year’s feast. We have to stop this!”

2 Likes

Some ideas

  • A group of voices can be heard singing/humming and echo through the tunnels.
  • Bloodied labors toil as a relentless overseer commands them to hurry.
  • an unusually cold area. icy water and frozen corridors.
  • a vault door that’s been opened by force. inside is a magic summoning/teleport circle
  • Goblin-Beaver hybrids that give off an eerie glow
  • The ghost of an octopus with an inky aura of decay
  • Sewer Sphinx that spews toxic waste
  • Undead Frog-folk
3 Likes