Publisher: MCDM Productions
Author: Matt Colville and team
System: 5th Edition (D&D 5E-compatible)
Pages: 424
Genre: Fantasy / Monster Manual
Release Year: 2023
Overview
Flee, Mortals! is MCDM’s ambitious monster supplement for 5th Edition, offering a modern, cinematic, and tactically rich approach to creature design. With over 300 monsters, new minion rules, villain actions, and encounter-ready stat blocks, it’s more than a monster book—it’s a full-blown GM toolkit. Created by Matt Colville and the MCDM team, Flee, Mortals! aims to fix what many consider one of 5E’s persistent problems: boring monsters and lackluster combat.
This is not just another bestiary. It’s a reimagining of monster design philosophy that prioritizes player engagement, narrative dynamism, and tactical variety.
Presentation and Design
Visually, Flee, Mortals! is stunning. The art is vibrant and evocative, with bold, expressive monster illustrations. The layout is modern and clean, with clear information hierarchy. Each monster entry is immediately readable, avoiding the data-dense clutter that bogs down other stat blocks.
The book uses colorful, digestible formatting to separate monster lore, stats, tactics, and special features. It’s GM-friendly at the table and rich in visual flair. Everything is easy to find and quickly actionable, from minion rules to elite actions.
The tone of the writing—classic MCDM—is witty, conversational, and accessible. Whether you’re a veteran GM or a relative newcomer, you’ll feel welcomed into the design choices and encouraged to adapt monsters as you see fit.
What Sets It Apart
Minions and Action-Oriented Design
MCDM introduces minions in the 4E tradition: 1-HP creatures meant to die fast but still feel threatening. These aren’t cannon fodder without purpose—they serve specific tactical or thematic roles in encounters. A battle with dozens of kobold minions supporting elite casters feels dramatically different from a typical 5E fight.
Complementing minions are Villain Actions, which replace traditional lair or legendary actions. Villain Actions occur on a fixed round schedule (e.g., round 2, 3, 4) and are powerful, encounter-defining moves that turn monsters into bosses worthy of cinematic battles.
For example, a lich might shatter the floor into necrotic tendrils in round 3, forcing a shift in tactics mid-fight. These predictable, potent actions add drama, anticipation, and narrative pacing.
Smart, Tactical Monsters
Monsters in Flee, Mortals! are built to do something cool and thematic on every turn. They have clear combat roles, from frontline bruisers to controller-types with disruptive area effects. Rather than stat inflation, monsters are given new abilities that affect positioning, decision-making, or morale.
Many creatures have reaction-based abilities, zone control tactics, or environmental interactions—making players feel like they’re fighting a real, thinking enemy. Even standard foes like bandits or goblins become much more engaging with layered interactions and synergy between abilities.
Villain Parties
Rather than just present an ememy in isolation, Flee, Mortals! aslo includes villain parties, complete with organizational structure, motivations, and tactics. This is incredibly helpful for GMs building campaigns or one-shots.
Some villain party examples include:
- Grave Order: A necrotic cabal seeking to plunge the world into undeath.
- Amathyst Knife: Psionic criminals striving for wealth, influence, and control by any means necessary.
- Soulbinders: Ancient cursed explorers forcing the masses to worship them in order to gain immortality and achieve godhood.
These villain parties aren’t fully fleshed campaigns, but they provide plenty of hooks for GMs to build on.
Support for GMs
Flee, Mortals! is also a resource for encounter-building:
- Each monster is tagged by role (bruiser, striker, controller, etc.), making it easy to build balanced or themed encounters.
- Clear guidance on CR equivalence when using minions and elite monsters.
- PDF and digital formats include hyperlinks, searchability, and clean export options for VTT play.
The Quick Reference Guide in the back of the book is invaluable: monsters organized by CR, role, and keyword for easy encounter prep.
What It’s Missing
No supplement is perfect. While Flee, Mortals! is robust and creative, there are a few caveats:
- Learning curve: Some GMs used to traditional 5E design may need time to adapt to villain action pacing and minion balance.
- Limited “plug-and-play”: While you can use these monsters in vanilla 5E, they shine best when used with the MCDM action framework. Some reskinning or encounter design may be needed to fully capitalize on their strengths.
- No setting content: This is not a lorebook or campaign setting—there’s little in the way of worldbuilding outside of faction flavor. It’s a toolbox, not a sandbox.
Ideal Use Case
Flee, Mortals! is best suited for:
- GMs who want faster, deadlier, more dynamic combat.
- Groups who like tactical challenges and combat-as-puzzle encounters.
- Campaigns that lean into epic boss battles, minion waves, and set-piece fights.
- Players who are tired of monsters being meat bags with multiattack and little flavor.
It pairs especially well with other MCDM products like Kingdoms & Warfare or Strongholds & Followers, but also stands alone perfectly.
Conclusion
Flee, Mortals! is a game-changer for DMs who want their combat to feel cinematic, dangerous, and exciting. MCDM delivers on its promise: monsters that act with purpose, create tension, and force player creativity. It’s not about harder numbers—it’s about smarter design. If you’ve ever felt 5E’s combat was too static or too slow, this book is your cure.
This isn’t just one of the best monster books for 5E—it’s one of the most important. It reflects the growing desire among 5E players for depth, variety, and challenge.