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Welcome to LifeWiki, the wiki for Conway's Game of Life. Currently contains 2,645 articles.

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Today's featured article Block is an extremely well-known and common still life that was found by John Conway in 1970. In terms of its four cells it is tied with tub as the smallest still life, and in terms of its 2 × 2 bounding box it is outright the smallest. Due to its small size, its ability to act as an eater, and its simple glider syntheses, it is extremely useful in the construction of larger patterns. It can be used as an induction coil as in block and dock, block on table and block on griddle. The block was one of the patterns described in the original 1970 article by Martin Gardner that introduced the Game of Life to the world. Read more... In the news December 14: A significantly improved compiler and emulator package for APGsembly version 2 is posted by new contributor branoc, with new optimized arithmetic components, sample code and documentation. December 11: Matthias Merzenich completes a very high-clearance period-7 middleweight sparker based on a partial result by hotcrystal0. December 5: Matthias Merzenich completes the first true period-35 glider gun based on a partial result by iNoMed and hotcrystal0. November 18: AlbertArmStain discovers a small, direct H-to-MWSS conduit with a repeat time of 141 ticks. Period1GliderGun and Lucy D'Agostino subsequently find variants that reduce the repeat time to 120 ticks. November 3: Lucy D'Agostino discovers a new set of connectable Spartan converters with E-heptomino inputs, further expanding the set of known E-heptomino conduits. November 2: iNoMed finds a way to use stable catalysts to make a p2 traffic jam wire turn a 90-degree corner with no help from sparkers. Editable news item submissions page • Archive •

Did you know... ... that a pattern exists in which no cell in the unbounded Life plane ever becomes periodic? ... that several different universal constructors in Conway’s Life have been shown to be capable of constructing their own circuitry? ... that there are dozens of known Cordership variants, including puffers, rakes and wickstretchers, with periods of any multiple of 96? ... that greyships have been constructed with speeds of c/2, c/3, c/4, c/5, and 2c/5? ... that most greyships travel parallel to the stripes in their included agars, but a few travel perpendicular to the stripes, or "against the grain"? ... that a pattern has been constructed that calculates and prints out the digits of pi in decimal, and a similar one prints out the decimal digits of the Golden Ratio? ... that several different patterns have been constructed to calculate and display the sequence of prime numbers, and some have been adapted to display only twin primes or Fermat primes? ... that two completely different types of oblique spaceships, the waterbear and the half-baked knightship, were constructed in 2014? ... that no Caterpillar-type spaceships were completed for almost ten years after the original Caterpillar was constructed in 2004, but that two different designs, the waterbear and the centipede, were finished in 2014? ... that the first spiral-growth pattern in Conway's Life was constructed in 2014?           Showing 10 items out of 197 More did you know... Pattern collection The LifeWiki contains one of the most comprehensive catalogues of patterns available on the internet. Within it you will find: 1722 patterns (including 703 oscillators, 205 spaceships and 374 still lifes); 3733 images (608 animated and 3125 static); Over 3000 downloadable pattern files; Glider syntheses for 988 patterns. Download pattern collection 6MB .zip archive containing the 5200+ Game of Life RLE pattern files used on the wiki Also available: 38KB .zip archive containing approximately 75 pattern files for other cellular automata