Ideas For A Dark Castle Map-Based Adventure

Do you remember "Dark Castle" map? Below you will find our proposal / inspiration for events and adventure that can take place using this map. This is another thing we want to create for you as Spellarena - we are very curious how you will like our idea. Write in your comments what you think about this mini adventure. Or maybe you prefer some ideas and inspiration on how to use such a map? Please give us your feedback!

We will create such one-shot short adventure ideas to all maps for Patrons with $5 and $10 tiers.  

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"Battle for Immortality"

This adventure seed is designed to work with the Spellarena map of a mysterious castle. It is system-agnostic and can be used within different fantasy settings, from heroic adventures such as Forgotten Realms or darker worlds e.g. Hyperborea (Conan 2d20) or Warhammer.

Background information

Frontier baronies are a tough, unforgiving place, but one where, through hardship and determination, anyone can become a better ­— and wealthier — person. Baron Harrington was just that, and more. He was just, but stern. 

He cared deeply for his land and his people and during his reign, the barony became a stable haven in the otherwise chaotic part of the world. From his sturdy keep, called Steel Gaze, and visible from anywhere in the barony, the Baron ruled for many years… but recently a shadow fell on the land.

The baron’s oldest son, Ragnos, became a wizard. He had always heard the whisper of magic and the baron happily paid for the studies. However, Ragnos discovered that Steel Gaze had been built on a nexus of magical power. He returned home and decided to use that power to become immortal — he never cared for his father, his ideals, or the land and its people.

Ragnos killed his father and thanks to his cruel mercenaries and cultists, he managed to turn the people against each other. Hatred and fear corrupted and empowered the nexus of power. Now Ragnos is ready for the ritual that will grant him immortality!

The road to Steel Gaze

An outline of an adventure that uses the castle for the showdown could look like this:

Bitter return. The barony is the party’s home or perhaps a PC is the baron’s younger child. They return after a few years of adventuring elsewhere and see the horrible changes that came upon the land: distrustful people, new baron’s secret police/cultists, cruel mercenaries, ravaging monsters, etc.

Grassroots movement. Through adventuring the party learns about Ragnos and his plan. This includes gaining the people's trust, battling mercenaries and monsters, discovering the information about the nexus of power. Maybe they will even organize an uprising!

Cut off the head. Having weakened Ragnos and his forces, the party attacks the castle. While they are battling through, Ragnos is desperately trying to tap the nexus’ power ­— an operation that might ruin the entire land!

Showdown features

In the final battle consider the following highlights of the map:

- entropic mist fills the chasm around the castle, so scaling the walls might be doubly dangerous.

- The ballistas are manned, making direct approach very risky. Later, the PCs might take control of them and repel incoming reinforcements.

- The spikes are a magical prison. The outside circle holds a mighty beast, which Ragnos unleashes on the heroes to buy time. The one within the walls holds prisoners to be sacrificed in the final stages of the ritual.

- The summoning circle is where Ragnos makes his final stand, tapping the nexus’s power without restrain. During this final fight, the entire castle and the rock it is on might rise into the air, making Steel Gaze a flying fortress, which later can serve as the party’s mobile base!