⚙️ WOB: The Deadfall Codex

A Book of Traps, Hazards, Wards & Deadly Encounters

Compatible with D&D 2024 rules for Fantasy Grounds Unity

Death does not always carry a sword.

Sometimes it waits beneath a loose floor tile. Sometimes it hides behind a keyhole, whispers from an ancient rune, or awakens when an adventurer touches the wrong treasure.

WOB: The Deadfall Codex is a massive Fantasy Grounds Unity collection containing 460 traps, hazards, wards, artificer devices, animated threats, and deadly encounter mechanisms for characters from levels 1 through 20.

Whether you need a simple poisoned needle, a collapsing dungeon chamber, an arcane kill zone, a fiendish soul trap, or an entire room that comes alive, the Deadfall Codex gives you ready-to-use tools for building dangerous and memorable encounters.

Video: Here

🗡️ 460 Ready-to-Use Traps and Hazards

The codex includes an enormous variety of dangers:

• Mechanical traps
• Projectile and blade traps
• Pit and crushing traps
• Door, lock, chest, and object traps
• Magical wards and glyphs
• Elemental and environmental hazards
• Wilderness and hunter-made traps
• Cultural and faction-built traps
• Animated object encounters
• Creature release traps
• Artificer devices and arcane machinery
• Fiendish and infernal traps
• Trap networks and deadly combinations

Each entry is written as a complete Fantasy Grounds record and can be placed directly into an encounter or added to the Combat Tracker.

🎲 Four Tiers for Every Trap

Every trap includes four scalable versions:

• Tier 1: Levels 1–4 — DC 13
• Tier 2: Levels 5–10 — DC 16
• Tier 3: Levels 11–16 — DC 19
• Tier 4: Levels 17–20 — DC 21

Choose the tier that matches your group and use the trap immediately without rebuilding its mechanics.

Tiered entries include appropriate:

• Attack bonuses
• Saving throw DCs
• Damage dice
• Areas of effect
• Ranges
• Conditions
• Escape checks
• Detection checks
• Disarming checks

🔍 More Than a Damage Roll

Every trap contains detailed information to help the Game Master run it as part of the environment:

• Player-facing activation description
• Overview and intended use
• Typical placement
• Trigger and operation
• Detection clues
• Disarming or suppression methods
• Countermeasures
• Reset and reloading information
• Construction or supernatural cause
• Optional variants

Players can investigate, bypass, disable, suppress, redirect, or exploit many of these hazards instead of simply making a saving throw.

🔨 Build Your Own Traps

The Reference Manual includes complete rules for characters and NPCs to design and construct traps.

Construction rules include:

• Build DCs
• Material costs in GP
• Construction grades
• Required tools
• Build times
• Blueprints and design checks
• Workshops and helpers
• Failed construction checks
• Testing procedures
• Repair and maintenance
• Resetting and reloading
• Salvaging trap components
• Upgrading traps
• Magical power sources
• Creature-based traps
• Artificer construction
• Fiendish bargains and planar components

Each of the 460 trap entries includes its own Construction Profile.

📖 Complete Fantasy Grounds Reference Manual

The module contains a fully organized, linked Reference Manual with ten chapters:

1. Using The Deadfall Codex
2. Mechanical Traps
3. Magical Traps
4. Environmental Hazards
5. Animated Objects and Creature Releases
6. Artificer Traps
7. Fiendish Traps
8. Trap Networks and Deadly Combinations
9. Random Trap Tables
10. Appendices

Every trap page links directly to its complete Fantasy Grounds record.

🎯 102 Random Tables

Need a trap immediately?

The included random tables help generate dangers based on:

• Trap category
• Location
• Tier
• Damage type
• Trigger
• Placement
• Magical theme
• Artificer design
• Fiendish origin
• Environmental conditions

Use the focused category tables or roll on broader master tables for unexpected results.

👹 Encounter Traps

Not every trap is a hidden blade.

Some traps begin full encounters by releasing or animating threats such as:

• Flying grimoires
• Living scrolls
• Animated weapon racks
• Hostile furniture
• Stone sentinels
• Gargoyle galleries
• Scarab swarms
• Spider egg vaults
• Serpent urns
• Ooze reservoirs
• Undead ossuaries
• Bound elementals
• Construct assembly forges

These hazards can transform an ordinary room into a dynamic battlefield.

⚙️ Artificer Traps

Deploy complex magical machinery such as:

• Arcane turrets
• Automatic ballistae
• Lightning capacitors
• Steam cannons
• Alchemical flame projectors
• Acid sprayers
• Force pulse emitters
• Gravity generators
• Arcane mines
• Mechanical net launchers
• Magnetic snares
• Rotating saw assemblies
• Construct repair stations
• Automated assembly forges

🔥 Fiendish Traps

Bring infernal cruelty and abyssal corruption into your adventures with:

• Hellfire glyphs
• Infernal chain snares
• Blood runes
• Soul cages
• Soul furnaces
• Abyssal maws
• Demonic summoning circles
• Infernal altars
• Possession wards
• Gates to the Abyss
• Chains of the Nine Hells
• Devilish contracts

Fiendish traps may require more than tools to overcome. Some demand holy power, forbidden knowledge, destroyed contracts, or the breaking of planar bindings.

🧩 Create Deadly Trap Networks

The codex includes guidance for combining traps into larger encounters:

• Chained triggers
• Layered defenses
• Trap corridors
• Kill boxes
• Cascading failures
• Timed escape rooms
• Boss chambers
• Trap gauntlets
• Traps combined with monsters
• Hazards that reshape the battlefield

A single pressure plate can trigger an entire sequence of doors, hazards, summoned creatures, and environmental effects.

🖥️ Built for Fantasy Grounds Unity

This module includes:

• 460 complete trap and hazard records
• Four tiered activations per trap
• Tiered detection and disarming traits
• Fantasy Grounds action coding
• Damage and saving throw automation
• Condition effects where appropriate
• Combat Tracker-ready records
• 102 linked random tables
• A fully linked Reference Manual
• Trap construction rules
• GM guidance and encounter-building tools

☠️ The Dungeon Is Fighting Back

Fill forgotten tombs, castles, wilderness ruins, infernal temples, artificer workshops, and ancient vaults with dangers that feel like part of the world.

Give your players warning signs to investigate, mechanisms to dismantle, wards to suppress, and desperate choices to make.

Open The Deadfall Codex and make every door, treasure chest, hallway, and quiet room a possible encounter.

460 traps. Four tiers. Endless ways to die.

Created by WOB