Vivarium (latin for 'place of life') is a wikiwidget meant for Wikipedia articles about Conway's Game of Life, the best known cellular automata. It can be seen live in the article Juego de la vida of the Spanish Wikipedia, and you can also load it in this very page by clicking .
If you want Vivarium on your wiki, first enable WikiWidgets and then recreate the Template:Vivarium in your wiki. Once done, you will be able to insert Vivarium into any page by just using the template.
The code of Vivarium is served from Commons (MediaWiki:WikiWidget-Vivarium.js and MediaWiki:WikiWidget-Vivarium.css) but the development is done via Phabricator and Gerrit. The code can also be found at the GitHub mirror. The main developer is Sophivorus.