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the wiki for Conway's Game of Life.
Currently contains 1,374 articles.
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This week's featured article

Switchengine.png
A switch engine is a methuselah that was found by Charles Corderman in 1971. It is unstable by itself, but it can be used to make c/12 diagonal puffers and spaceships. There are two basic types of stabilized switch engine, both of which were also found by Charles Corderman: the period 288 block-laying switch engine (the more common of the two) and period 384 glider-producing switch engine. These two puffers are the most natural infinite growth patterns in Life, being by far the most common ones to occur from non-symmetric random starting patterns.

Pattern collection

The LifeWiki contains one of the most comprehensive catalogues of patterns available on the internet. Within it you will find:
Download.gif Download pattern collection
1.75 MB .zip archive containing the 1500+ RLE pattern files used on the wiki

Did you know...

  • ...that absolutely no elementary knightships have been discovered as of 2016, though there has been at least one very close call?
  • ... that there is a 6x2 counterexample to the Coolout Conjecture, proving that patterns that are internally compatible with stability can not always be made part of a larger still life, no matter what cells are added around the edges?
  • ... that a Conway's Life pattern representing a complete programmable 8-bit computer, consisting only of buckaroos, p60 glider guns, and glider duplicators, was completed in November 2016?
  • ...that whilst no very small knightships have been found at all in B3/S23, at least two naturally occurring reactions have been discovered in B38/S23 that travel in an oblique direction?
  • ...that not all 1.00 volatility oscillators are phoenixes?
  • ... that no pattern inside a 6x6 bounding box is a Garden of Eden?
  • ... that Garden of Eden patterns with only 45 ON cells have been found?
  • ... that it is known that no Garden of Eden patterns exist that are 1, 2, or 3 cells high, but that it is currently an open question whether a 4-cell-high GoE can be constructed?
  • ... that 6-cell-high Garden of Eden patterns were constructed as far back as 1973, but 5-cell-high GoEs were unknown until Steven Eker found some in 2016?
  • ... that in 2016, patterns were found that have great-great-grandparents but no great-great-great-grandparents?          
Showing 10 items out of 84 More did you know...