Sign-In
Cart
The Colossus Autopsy: A Mature D&D 5e One-Shot Adventure for 2-3 Level 2 Characters
Paperback
Series: The Ready Adventure, Book 1
Please select the version of book you would like to purchase.
ISBN13: 9798279027033
Publisher: Independently Published
Published: Dec 19 2025
Pages: 68
Weight: 0.40
Height: 0.14 Width: 8.50 Depth: 11.00
Language: English
Publisher: Independently Published
Published: Dec 19 2025
Pages: 68
Weight: 0.40
Height: 0.14 Width: 8.50 Depth: 11.00
Language: English
Enter through a sword wound.
Navigate a corpse the size of a house.
Extract a priceless magical artifact before your rivals claim it.
Survive the collapse. THE COLOSSUS AUTOPSY is a complete 2-hour D&D 5e adventure designed for 2-3 players at level 2, perfect for groups seeking mature themes, body horror, and meaningful moral choices. WHAT'S THE STORY?
Navigate a corpse the size of a house.
Extract a priceless magical artifact before your rivals claim it.
Survive the collapse. THE COLOSSUS AUTOPSY is a complete 2-hour D&D 5e adventure designed for 2-3 players at level 2, perfect for groups seeking mature themes, body horror, and meaningful moral choices. WHAT'S THE STORY?
A 60-foot storm giant has washed ashore, dead from battle. The Arcane Collegium needs you to enter through a wound beneath its ribs, navigate its decaying anatomy, and extract the valuable storm heart from its chest cavity before the rival guild-The Ash Circle-beats you to it. But the Ash Circle went in hours ago.Their fate is unknown. And something is still living inside the giant's corpse. WHAT'S INCLUDED:
✓ Complete 2-2.5 hour adventure with linear dungeon crawl structure
✓ Three pre-generated characters with rich backstories (Grave Cleric, Alchemist Artificer, Battle Master Fighter)
✓ Six detailed segments: Ribcage Gallery, Stomach Chamber (optional), Esophageal Passage, Lung Cavity, Arterial Passages, Heart Chamber
✓ Complete monster stat blocks (Giant Crabs, Darkmantles, Gelatinous Cube, Gray Oozes, Giant Heartworm boss) ✓ Dramatic 10-round escape sequence as the body collapses
✓ Multiple endings based on player choices
✓ Optional side quest for pacing control (adds 15-20 minutes)
✓ Competitive treasure hunting against rival NPCs
✓ Full character sheets optimized for printing PERFECT FOR:
- Groups seeking mature, body horror themes (18+)
- Small gaming groups (2-3 players specifically)
- Experienced players wanting unique settings
- New DMs learning adventure design (clear structure)
- One-shot game nights - Convention games
- Halloween or horror-themed sessions FEATURES:
⚠ Mature Content Warning: Body horror, gore, visceral descriptions, difficult moral choices, competitive gameplay with potential character deaths. Designed for adult players (18+).
- Unique setting: dungeon crawl through giant anatomy (stomach, lungs, blood vessels, heart)
- Time pressure mechanics with rival guild racing you to the prize
- Moral complexity: The Ash Circle aren't villains-they're people trying to survive
- Environmental storytelling and organic dungeon design
- Sympathetic boss monster defending its nest
- Multiple solutions to navigation and combat challenges
- Pip the wooden boy (optional companion with Pinocchio inspiration)
- Future campaign hooks included DESIGNED FOR EASE OF USE:
✓ Linear room-by-room progression (perfect for new DMs)
✓ Clear 2-hour timeline with pacing suggestions
✓ Optional stomach segment for flexible runtime
✓ Professional layout optimized for table use
✓ Complete tactical maps for all locations
✓ Detailed NPC motivations and personalities
✓ Escape sequence creates natural climax and urgency THE EXPERIENCE:
From the rocky beach where the giant lies, through the cathedral-like ribcage, down into the acidic stomach chamber, up the esophageal passage, across the toxic lung cavity, through the maze of blood vessels crackling with electrical energy, to the final confrontation in the heart chamber-this adventure delivers classic D&D dungeon crawling in an unforgettable setting. Will you help the Ash Circle members escape, or doom them for the reward?
Will you rescue Pip, or leave him in the darkness?
Will you fight the heartworm or let it kill your rivals? Your choices matter. Everything you need for an unforgettable horror-fantasy gaming session-just add dice and a strong stomach! From Tim Mack, creator of The Winter Ball Heist, The Sinking Tower of Hours, and The Stolen Festival Bell.
✓ Complete 2-2.5 hour adventure with linear dungeon crawl structure
✓ Three pre-generated characters with rich backstories (Grave Cleric, Alchemist Artificer, Battle Master Fighter)
✓ Six detailed segments: Ribcage Gallery, Stomach Chamber (optional), Esophageal Passage, Lung Cavity, Arterial Passages, Heart Chamber
✓ Complete monster stat blocks (Giant Crabs, Darkmantles, Gelatinous Cube, Gray Oozes, Giant Heartworm boss) ✓ Dramatic 10-round escape sequence as the body collapses
✓ Multiple endings based on player choices
✓ Optional side quest for pacing control (adds 15-20 minutes)
✓ Competitive treasure hunting against rival NPCs
✓ Full character sheets optimized for printing PERFECT FOR:
- Groups seeking mature, body horror themes (18+)
- Small gaming groups (2-3 players specifically)
- Experienced players wanting unique settings
- New DMs learning adventure design (clear structure)
- One-shot game nights - Convention games
- Halloween or horror-themed sessions FEATURES:
⚠ Mature Content Warning: Body horror, gore, visceral descriptions, difficult moral choices, competitive gameplay with potential character deaths. Designed for adult players (18+).
- Unique setting: dungeon crawl through giant anatomy (stomach, lungs, blood vessels, heart)
- Time pressure mechanics with rival guild racing you to the prize
- Moral complexity: The Ash Circle aren't villains-they're people trying to survive
- Environmental storytelling and organic dungeon design
- Sympathetic boss monster defending its nest
- Multiple solutions to navigation and combat challenges
- Pip the wooden boy (optional companion with Pinocchio inspiration)
- Future campaign hooks included DESIGNED FOR EASE OF USE:
✓ Linear room-by-room progression (perfect for new DMs)
✓ Clear 2-hour timeline with pacing suggestions
✓ Optional stomach segment for flexible runtime
✓ Professional layout optimized for table use
✓ Complete tactical maps for all locations
✓ Detailed NPC motivations and personalities
✓ Escape sequence creates natural climax and urgency THE EXPERIENCE:
From the rocky beach where the giant lies, through the cathedral-like ribcage, down into the acidic stomach chamber, up the esophageal passage, across the toxic lung cavity, through the maze of blood vessels crackling with electrical energy, to the final confrontation in the heart chamber-this adventure delivers classic D&D dungeon crawling in an unforgettable setting. Will you help the Ash Circle members escape, or doom them for the reward?
Will you rescue Pip, or leave him in the darkness?
Will you fight the heartworm or let it kill your rivals? Your choices matter. Everything you need for an unforgettable horror-fantasy gaming session-just add dice and a strong stomach! From Tim Mack, creator of The Winter Ball Heist, The Sinking Tower of Hours, and The Stolen Festival Bell.
Also from
Mack, Tim
Love's labyrinth: A Valentine's Day & Love Inspred One-Shot for D&D For 2-4 Players
Mack, Tim
Paperback
$15.59
The Other Side of the Door: A Role-Reversal Dungeon Defense Game for 1-3 Players D&D 5E Compatible
Mack, Tim
Paperback
$15.59
The Art and Science of Wand Magic: A Comprehensive Guide to Spell Casting and Enchantment
Mack, Tim
Paperback
$26.39
The Winter Ball Heist: A Holiday Winter D&D One-Shot Adventure for Level 2 Characters
Mack, Tim
Paperback
$15.59
101 ADVENTURES FOR BUSY DMs: Ready-to-Run One-Shot Ideas for Every Fantasy Campaign
Mack, Tim
Paperback
$32.39
Breadcrumbs A D&D 5e Dark Fairy Tale One-Shot Adventure: A Hansel Gretel retelling for 1-3 Players
Mack, Tim
Paperback
$15.59
The Frozen Equinox A D&D 5e One-Shot Adventure for 2-3 Players: A Spring Equinox Inspired Adventure
Mack, Tim
Paperback
$15.59
The Hangover of Heroes: Six Hours to the Wedding - A 5e Comedy One-Shot for 2 to 8 Players
Mack, Tim
Paperback
$15.59
The Harvest Home: Witness the Harvest - A 5e Folk-Horror One-Shot for Small Groups
Mack, Tim
Paperback
$15.59
Also in
Fantasy
The Strange Case of Dr. Jekyll and Mr. Hyde and Other Stories (Barnes & Noble Classics Series)
Stevenson, Robert Louis
Paperback
$5.99
The Princess Bride Deluxe Limited Edition: S. Morgenstern's Classic Tale of True Love and High Adventure
Goldman, William
Paperback
$19.80
Babel: Or the Necessity of Violence: An Arcane History of the Oxford Translators' Revolution
Kuang, R. F.
Paperback
$18.00
Japanese Gothic: A Folk Horror Novel of Japanese Mythology, Murder, and Family Duty Across Two Timelines
Baker, Kylie Lee
Hardcover
$28.50
Assistant to the Villain: A Cozy Fantasy Romantic Comedy from a Tiktok Sensation
Maehrer, Hannah Nicole
Paperback
$18.99
Before I Knew I Loved You: A Cozy Magical Realism Novel of Time Travel, Love, and Memory, Set in a Fabled Tokyo Café
Kawaguchi, Toshikazu
Hardcover
$20.69