In-jokes
Culture concept
This is a container group; its children are:
| A113 | A reference to classroom A113 in California Institute of the Arts started by former students attending classes there, namely Brad Bird followed by John Lasseter. | 2008 / 2013 | 15 games |
| THX-1138 | References George Lucas' movie, [url=http://www.imdb.com/title/tt0066434/]THX-1138[/url]. (too short) | 1987 / 2017 | 62 games |