Cuberok is a music player and collection manager with a lightweight interface. It supports music collections, CUE sheets, Shoutcast/icecast streams, a Last.FM and Libre.FM scrobbler, downloading images for albums and artists from Last.FM, information about artists from Last.FM, and lyrics from LyricWiki.org, automatic ratings for songs, and support for many playlists at one time.
Cubulus is an analytic engine and a slice and dice Web interface on top of a relational database (MySQL, PostgreSQL, SQLite, and MonetDB at the moment). It caches calculated cells and is able to parse basic MDX queries, with a maximum of two dimensions cross-join on rows and/or on columns. It includes hierarchical charts: the vertical boxes represent hierarchy "on rows", and horizontal boxes represent data sets "on columns" scaled to the "on rows" measure.
Cultivation explores the social interactions within a gardening community. You lead one family of gardeners, starting with a single individual, and wise choices can keep your genetic line from extinction. While breeding plants, eating, and mating, your actions impact your neighbors, and the social balance sways between conflict and compromise. Cultivation features dynamic graphics that are procedurally-generated using genetic representations and cross-breeding. In other words, game objects are "grown" in real-time instead of being hand-painted or hard-coded. Each plant and gardener in the game is unique in terms of both its appearance and behavior.
Cuppa is a cute application for Mac OS X to time your cup of tea as it steeps. Use it right from the dock: just right-click or command-click on the little teacup, and select the beverage you wish to brew. You'll see a tea bag appear in the cup, and gradually darken as the tea steeps. When the tea is done, the teacup will bounce and make a sound.
Curtain is a templating system akin to TAL, together with the METAL and Zope's i18n extensions. It's compiled, based on SAX, and thought to read and produce always well-formed XML. The syntax and semantics are kept very simple, and strive to be 100% tested and documented as a development principle.