Skip to content


Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?

Latest commit


Git stats


Failed to load latest commit information.

Rule Table Repository

A library of the rule tables and related source code for specific cellular automata. In the process we're developing an open file format of variables and transitions to capture the rules of various CA. Utilities for converting to and from these representations are included.

The repository now contains over 70 different CA rules!



  1. To develop and promote an open file format for rule tables.
  2. To be the most comprehensive list of CA rule tables.
  3. To provide a place for the community to share rule tables.
  4. To support Golly, the program that helped create the idea of a standard rule table format.