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The Bloodstrem (Photo (C) Procidis)

The Bloodstream (Photo (C) Procidis)

In the 1980s there was a french TV series called "Once upon a time... life". In this series the main characters were blood cells and vitamins and what not. And the baddies were Bacteria, Viruses, poison etc. So with this as an inspiration I've created a role-playing game (based on d6 for simplicity) set in this cartoon world.

If you don't know what I'm talking about have a look here, and here is the homepage of the producer of the series.

This system is based on the D6 system by WEG


  • Strength - Strength tells you how much you can carry and how well you endure stress of all kind.
  • Dexterity - Dexterity measures how nimble and quick you are.
  • Knowledge - Everything that is mostly knowledge based, or requires you to think.


Skills have a base score equal to the attribute that they are listed under. They can be increased by experience.


Close combat

This skill is used when you are attacked by bacteria or viruses.


This is used to get across hindrances like a blood clot or a ruptured vein etc.


Used to lift or carry heavy things (like carbondioxide spheres)


Used to perform heavy work over long time periods.

Strong Bacteria

These Bactera are pretty strong  (Photo (C) Procidis)



Used to dodge thrown objects and weapons


Used to block an attack


Attack using a ranged weapon like a CO2 ball


Used to sneak past bacteria or police (white bloodcells). This skill can also be used to hide and to camouflage yourself to something else.



This skill is used to find nutrients outside of the bloodstream (where there is a rich variety of nutrients).
This skill can also be used to gain knowledge of the tissue you are in. /"Oh so this is the liver. Riight"/
A third use of this skill is used to survive in totally hostile environments, like on the skin, etc.


This skill is used to fool security, and to detect such attempts.


This skill is used to search for something that you know/suspect is there. Like a Sneaking virus.

Targeted attack

This skill is used to make a ranged attack using antibodies or other chemicals.

Character types

Red blood cell

Red blood cell carrying oxygen

Red blood cells (Photo (C) Procidis)

Strength 3D
Dexterity 1D
Knowledge 1D
These guys are generally strong and dumb. They spend their days hauling O2 from the lungs and CO2 to the lungs. CO2 is quite heavy, while O2 is quite light.
Players who choose this character type get to assign 2D in any of the attributes. This can be split however the player wishes.
For more info see


Strength 3D
Dexterity 3D
Knowledge 1D
The policeforce of the body. They Are very physical and love to kick bacterial but! They have a special talent. They can do mitosis, that is split and double them selves. It takes 4 turns to perform a mitosis. When this is complete the character is essentially duplicated and the player gets to control both clones. They can also attack at very long ranges
For more info see


Strength 1D
Dexterity 3D
Knowledge 3D
These are also part of the body's defense force. T-cells co-ordinate the defense forces and have the knowledge to kill the body's own infected cells. These are the only ones that can attack a virus infected cell. The virus infected cells usually become factories that create more viruses. To kill an infected cell they need to detect it and the use a targetted attack on it. T-lymphocytes can also do a mitosis.
For more info see


Strength 2D
Dexterity 3D
Knowledge 2D
B-lymphocytes attack bacteria and viruses using antibodies. They are also part of the defense force. They are capable of mitosis.
For more info see

Character creation

  1. Choose character type
  2. Choose skills. You get 3D to split among skills. 1D is equal to three "pluses" That is with 1D you can either increase one skill with 1D OR three skills with +1 OR one skill with +2 and another with +1.
  3. Choose a name and all the important stuff like personality and background.
  4. Your character is ready! Enjoy!

The bad guys


Virus in a cell. Photo (C) Procidis)


Strength 2D
Close combat 3D
Dodge 4D
Targetted attack 5D
Cheat 2D
Influenza is a virus. It will try to infect as many cells as it can.
For more info see


Strength 4D + 2D armor
Close combat 5D
Dodge 4D
For more info see

Subpages (1): Anthrax