Game RPG Zero:Main Page

The creation of the Swedish company Free League/Fria Ligan, the Year Zero Engine started as the system behind their game Mutant: Year Zero, from which it takes its name. Free League later released other games using variants of the same basic system, including Coriolis, Forbidden Lands, Tales from the Loop, and Vaesen, and eventually released the core engine under an open license.

The Year Zero Engine SRD includes several variations on the engine. Characters' attributes can be described by dice pools or by step dice; their damage and trauma can be tracked by Health and Resolve scores, by just Health, by attribute damage, or by conditions. Unless specified otherwise, the Year Zero Engine Game pages in the Wongery will assume use of dice pools and ability score damage, but it should be fairly straightforward to convert the scores to use step dice or other damage and trauma systems if desired. If you prefer to use Health and Resolve scores, replace any damage to Strength or Agility scores by Health damage, and replace any damage to Wits or Empathy scores by Resolve damage. (Note that this may make PCs slightly more fragile.) If you prefer to use Conditions, you may use the Conditions from page 21 of the SRD or create your own.

Another aspect of the Year Zero rules with significant variants in the SRD is the push mechanic. In this case, there is no single variant of the push mechanic that is standard in the Wongery Year Zero gamespace; the Game pages for different worlds may use different push mechanics. Of course, these are only suggestions, and you are free to use different versions of the push mechanic (or any other mechanic) if you prefer.

With the exception of this overview page, all pages in the Year Zero Engine Gamespace are licensed under the Year Zero License. The Year Zero License itself can be found in a collapsible container at the bottom of each page.