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Heresy of Steel VTT

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Description

The Age of Flesh is Over,
The Reign of Steel Begins.

Forget simple monster hunting. In the cursed city of Luyarnha, the true horror isn't the beasts on the streets; it's the political machinations that weaponize them. This is HERESY OF STEEL, a D&D adventure where terror is systematic, and your survival depends not on steel alone, but on navigating a web of deadly alliances.

Three factions—the Radiant Church, the Scions, and the Forsaken—are tearing the city apart, each accusing the others of causing its downfall. But it is the Angel of Flesh who is truly behind this chaos, manipulating them from the shadows as he perfects his experiments. Soon he will have a mechanical army powerful enough to wipe out all biological life. Your task is to expose his plan and end it before it’s too late. Uncovering the Eldritch Truth behind his work may be the only way to stop him.

^{The Angel of Flesh is a manikin, a mechanical being, draped in the skin of those he kills.}

Inspired by Gothic and Lovecraftian horror, Heresy of Steel is a level 1-6 campaign for 5e and 5e 2024. It can be played on its own or integrated with Steinhardt’s Guide to the Eldritch Hunt.

Key Features

Moral Choices

Every decision matters. The Faction Standing system tracks your party’s reputation with each faction.
Your alliances and betrayals determine the fate of the city.

Will you install a holy regime, allow chaos to spread, forge a new fate for Luyarnha—or will you burn it all to the ground?

Horror Mechanics

Unleash a full Madness System with over 300 effects that capture the mental and physical toll of fighting the Scourge.
Optional Rest Rules intensify the grimdark tone of the campaign, adding lasting consequences to every battle.

Personal Stories

Choose one of 10 Personal Missions to tie your character to the story. Hunt the beast that killed you, find a cure for the Scourge, or expose the city's darkest secrets. Experience personal storylines rarely seen in official adventures.

Combat & Encounters

Inspired by Bloodborne, Heresy of Steel features tactical, environmental fights that reward strategy over brute force.

Every battle, whether in collapsing cathedrals or infected laboratories, features custom maps. Every enemy, whether gothic beast or eldritch horror, features custom art.

Tokens

^{Some of the new art present in the module}

Downtime Activities

Between hunts, players can pursue faction missions, unlocking unique rewards which evolve as alliances deepen, turning politics into power.

Among these are Trick Weapons—transforming mid-battle at the pull of a trigger (or a click in Foundry).

By DMs, for DMs

Built to make life easier for new GMs, and faster for veterans.

Every element of Heresy of Steel is optimized to streamline your prep and keep the focus where it belongs: on storytelling and tension. Whether you’re launching your first campaign or running your hundredth, this adventure is designed to save you time without sacrificing depth.

Created by the team behind the Foundry Module for Steinhardt’s Guide to the Eldritch Hunt.

Reviews for Steinhardt's on Foundry

^{Some of the reviews for the Foundry VTT module of Steinhardt's}

Heresy of Steel is an adventure for GMs and players who want a truly challenging horror experience, one where every victory carries political weight.

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Heresy of Steel VTT

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Join The Hunt

What is Steinhardt's Guide?

Steinhardt's Guide to the Eldritch Hunt is a 491 page grimoire fusing Soulsborne and Lovecraftian inspirations for 5th-edition DnD.

Enhance your 5E game with nightmarish monsters, eldritch moons, and the ever-looming threat of madness. Create an unforgettable narrative as you lay waste to eldritch spawn with an arsenal of trick weapons, blasphemous magic, and twisted player options.

A World Turned Upside Down

Entrance your players as they unravel the mystery of the ravaged First Hunters, the zealous Radiant Church, and the erudite Obitus Scholare in this victorian-flavored, grimdark setting. Luyarnha is a city on the brink. With a ready-made cast of characters and an unending list of trials, your players will find ample opportunity to become the heroes these soiled streets need or die trying.

Lunar Lunacy

Alter the world around your players with a single die roll; the fires of a scorching moon can turn Luyarnha’s streets into an inferno, while a sanguine moon’s bloody malice can incense even the calmest of pacifists into furious feats of passion. Create an unpredictable and ever-changing landscape usingSteinhardt’sMoon Phases mechanic. Theeight eldritch moons’ distorting influence begets a new chaos and calamity with each cycle.

Madness or Death

Watch as your players descend into an otherworldly insanity using the revamped madness system.

Steinhardt’s Guide integrates madness as a core mechanic in the monsters you fight, the traps you trigger, and the bewildering moons upon which you gaze. Embrace the beneficial, detrimental, and entirely obscene madness effects that more than 10x the number of options from the base 5E rules.

Nightmares Made Flesh

Play as Scourgeborne, beings who never fully succumbed to the plague, Manikin, porcelain marionettes with a nervous system of gold, or any of the other dozen race options. Evolve your characters using the extracted essence of the eldritch scourge you vanquish! However, beware sacrificing too much of your dwindling humanity lest you become like your fallen comrades, men-turned-beasts.

Spawn Slayers

Weave gunpowder and the arcane with the Pact of the Trigger Warlock, turn bones into playthings as an Osteomancer Wizard, and marshall the maddening moons’ powers as a Ranger of the Lunar Conclave.

Trick Weapons

Trick Weapons are a shape-changing arsenal of armaments that enhance your hunters’ versatility. Fire yourmeat hookshot, latch onto the enemy, pull yourself to point blank range, then blow off their face as you switch your weapon to a blunderbuss, one of several revamped firearms.

F.A.Q

What is included in the PDF/Book ?

This supplement brings a hoard of new content to your 5e game:

Rules for Eldritch Moons that corrupt the world.

A system for Trick Weapons & Firearms which you can transform in the middle of battle for deadly power.
A brand new ruleset for Madness with over 300 random effects!
64 destructive spells and a new magic: 'Osteomancy', granting you power over flesh & bones.
50+ macabre monsters, fallen comrades and spawns of the Old Ones.
50+ illustrated magic items & trick weapons.
19 twisted races and subraces.
17 new subclasses for your standard classes.
A new class: the Jaeger, inspired by Bloodborne's Hunter, with 4 subclasses.
13 gorgeous maps.
5 nightmarish adventures.
All the lore needed to craft a bloody, gothic campaign with your friends

All of this for a total of 491 pages of insanity! Get it today!

What is in the Digital Asset Bundle?

The Digital Asset Bundle (DAB) contains all of the standalone files you need to bring your gothic adventures to the next level!

These include everything to "make making your own VTT package easy":

Tokens for every new enemy.
High-resolution versions of all the battlemaps.
Full Art Bundle: High-resolution monster illustrations, Eldritch Moon tarot cards, character art, sketches, and printable field notes to give to players on the hunt.
Character Sheets for your players, including a unique one for the new Jaeger class.
A free copy of the GM Cheatbook, this one is on the house!

What's in the VTT Package?

Fully implemented stat blocks and tokens for every enemy, as well as spells and subclasses!
Enhanced functionality for the battlemaps with walls and lighting, as well as all the creatures you’ll need for each level bracket of each adventure, ready to drop in.
Handouts for all the spells and items in the book, as well as the lore, landscapes, sketches, creature and NPC art, and the monster field notes.
Integrated trick weapons for your players. (Especially with the latest version of Foundry VTT, now each weapon transforms at the click of a button.)

Foundry VTT, Roll20, Fantasy Grounds

Do you play online, on platforms likeFoundry VTT,Roll20, orFantasy Grounds? You can get Steinhardt's on those platforms! Click the links for details.