You may have seen "demodogs" and "demobats" in Stranger Things. But when rumors of strange creatures around Hawkins circulate back to expert Dungeon Master and Hellfire Club leader Eddie Munson, he becomes inspired.

In Stranger Things: Welcome to the Hellfire Club, you'll get to experience Eddie's lost campaign, and you'll have to face off against fearsome monsters of his own creation, like the Demodragon.

• Born of Nightmare and Inspiration
• How to Run the Demodragon Like a Dragon Out of the Abyss

Born of Nightmare and Inspiration

The Demodragon is a vision that was pulled from Eddie's wild imagination. A demonic, two-headed, dragon-esque creature with acid breath, a maw full of razor teeth, and wings that blot out the sky—summoned straight from the side of the Prince of Demons himself.

To Eddie, this was a terrifying challenge for his poor players. Something that they will need to be cunning, brave, strong, and a little lucky to defeat.

Artist: STEVE ELLIS

How to Run the Demodragon Like a Dragon Out of the Abyss

Even for players who are used to Eddie's twisted tactics, the Demodragon is no ordinary foe.

Its Regeneration trait, slew of Resistances and Immunities, and Fly Speed make it hard to put down, and its offensive capabilities make it too dangerous to fight for long.

Dungeon Masters running Eddie's horrifying creation will want to keep in mind:

Obscure the Environment

You have your players enter a pitch-black room. Even characters with Darkvision can only see as if it's Dim Light.

A character lights a Torch to help them see their surroundings, but its light sputters, barely casting Dim Light in a 20-foot radius.

That's when the Demodragon strikes.

Put Out the Lights

The Demodragon snuffs any magical light that shines through its Baleful Presence by targeting the caster first. It fights better in the dark because of its Blindsight.

Keep it Moving

With a 60-foot Fly Speed, the ability to regenerate Hit Points, and a rechargeable attack that can hit from range, the Demodragon doesn't want to get pinned down and surrounded on the ground.

Crush the Competition

The Demodragon is a Huge creature and frighteningly strong. Have it make an Unarmed Strike to grapple its prey, then fly up and devour at its leisure.

Play Tonight with the Digital Adventure Pack

The Stranger Things Welcome to the Hellfire Club Digital Adventure Pack provides a digital toolkit so you can play immediately on D&D Beyond. Get 5 premade characters, 4 quickplay maps pre-loaded with monsters and tokens, fog of war, and sticker packs to run on D&D Beyond's Maps Virtual Tabletop (VTT).

Before you know it, your party will be rolling for Initiative with the Demodragon!

Unleash Eddie's Creation

The Demodragon is Eddie Munson's magnum opus, a monster born from his love of metal, mayhem, and Dungeons & Dragons.

Now, you can bring that same nightmare to your table with Stranger Things: Welcome to the Hellfire Club. Inside this boxed set, you'll find everything you need to experience Eddie's unfinished campaign, battle his most terrifying foe, and relive the glory of Hawkins' most infamous D&D club. Can your party survive Eddie's ultimate creation?

Mike Bernier is the founder of Arcane Eye, a site focused on providing useful tips and tricks to all those involved in the world of D&D. Outside of writing for Arcane Eye, Mike spends most of his time playing games, hiking with his girlfriend, and tending the veritable jungle of houseplants that have invaded his house.