Running All Flesh Must Be Eaten Without Losing Your Mind
I ran a one-shot of All Flesh Must Be Eaten last month with a group that had never played a tTRPG before. The system is straightforward on paper, but there are a handful of things that will trip you up if you just skim the rulebook and walk into your first session. I am going to walk through what the game actually is, how the core mechanic works, and where people usually get stuck. All Flesh Must Be Eaten is a roleplaying game about zombies. Not the metaphorical kind. People who have been bitten, died, and come back wrong. The game has gone through a few systems over the years. The original used a custom GUMSHOE-derived engine, and the current edition uses a streamlined version of Savage Worlds. Both versions share the same DNA: player characters start as humans, get infected, and then play as undead creatures trying to maintain some shred of personhood while their bodies fall apart around them. The core loop is built around a resource called Deadness or Vigor depending on the edition, and a trait system that lets you customize exactly what kind of monster your character has become. You pick a species, a mutation table, a set of weaknesses, and a handful of Sicknesses that reflect how far gone your character is. The game does not hold your hand through this. It assumes you understand that the point of playing a zombie character is to deal with the fact that you are a zombie character.
How the mechanic actually works
Let me skip the textbook definition and just explain what happens at the table. When something uncertain occurs, theGM calls for a roll. In the Savage Worlds edition, that is a standard d6 roll against a target number derived from your Skill rating plus your Wild Die. If you succeed, you do what you attempted. If you fail, bad things happen. The tension in AFM comes from the fact that doing things as a zombie often costs you something tangible, whether that is Health, Sanity, or progress toward your character gradually becoming an ordinary shambler. The mutation tables are where the game earns its reputation. Each species has its own table, and you spend points to buy improvements and drawbacks. A Brute might pump up its Toughness and lose the ability to use tools. A Slink might gain enhanced speed and stealth but become fragile. The tables are dense, and it takes about twenty minutes to build a character the first time. After that, it drops to about five. One thing most new GMs miss: the Sickness track. Your character gains Sickness points whenever they use certain powers, take damage, or fail rolls depending on the edition. As Sickness climbs, your character becomes less competent and more monster-like. This is the game's central tension machine. The slower you let it wind up, the more dramatic the eventual collapse. The faster you let it wind up, the shorter your session feels. There is no perfect pace. It depends on your table.
A specific edge-case I ran into
During a session last November, I had a player whose character had purchased the Regeneration mutation heavily. This trait lets your character heal damage over time, which is wonderful until you realize the rules for how Regeneration interacts with cumulative Sickness were not entirely clear in the text. The character was healing faster than the Sickness was accumulating, which meant the tension track was barely moving. We spent about twenty minutes debating whether the rules supported my initial interpretation or the player's. Here is the workaround I ended up using: I ruled that any time the character dropped below half Health, they immediately gained one Sickness point regardless of the normal triggers. This made sense thematically, it kept the game moving, and it was close enough to the spirit of the rules that nobody complained. I also wrote it down so I would not forget for next time. If you are running a Regeneration-heavy character, expect this conversation to come up. It comes up in every game I run it in.
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Things the rules do not tell you
First, the game is brutal to unprepared characters. New players who jump into a session without understanding their own weaknesses often create characters that are mechanically powerful but narratively fragile. A zombie with high Toughness but no resistance to fire or decapitation will die very quickly in an encounter with a well-equipped survivor NPC. Building a character means understanding what kills your species, not just what makes it strong. The rulebook mentions this in passing. It does not drive the point home hard enough. Second, the Savage Worlds edition inherited some awkwardness from the system it is built on. Skills like Intimidate and Investigation work fine, but skills that depend on environmental factors or social nuance can feel thin. AFM is not designed as a social game. It is designed as a horror game where the environment is the primary antagonist. If you want deep interpersonal drama, you will need to bring it to the table yourself. The rules will not save you.
Where the system breaks down
All Flesh Must Be Eaten is not a good game for several types of tables. If your group wants tactical combat focus, other systems handle that better. If your group wants long-term character progression, the Sickness system actively works against that. If your group wants a hopeful tone, this is the wrong game. It is bleak by design. The best sessions I have run with this system were ones where everyone accepted that the story was about loss, not victory. For a lighter take on zombie gaming, consider Zombicide or Zombies!!! If you want something with deeper narrative tools but still in the horror space, Ironsworn handles bleak stories differently. Neither is better than AFM. They are just different. AFM remains the best option if you want to play as the monster and sit with the discomfort of that choice.
Getting the rules
The game is available through DriveThruRPG and the official All Flesh Must Be Eaten website. The current edition is the Savage Worlds version, published by Edge Studio. There are multiple sourcebooks that expand on different species, mutation tables, and campaign settings. The core rulebook alone is sufficient to start playing. I recommend grabbing the core rule and one species supplement to begin with. You do not need the entire library. If you are new to the system, I would suggest reading the first two chapters straight through before your first session. Chapter one covers the premise and tone. Chapter two covers character creation. Everything after that assumes you already know what you are doing. Jumping in blind and asking questions mid-game will slow your session down significantly. A thirty-minute pre-read saves about twenty minutes of table time during character creation.
