Brimbox is a database system that was designed to bridge the gap between spreadsheets and custom databases. It is intended to be an alternative to Access and Filemaker. Although Brimbox has its own modular approach, it is customizable in the spirit of Wordpress, though it is a database interface and not a CMS.
Gibbon is a graphical client for playing backgammon online on the First Internet Backgammon Server or servers that use the FIBS protocol. It is platform-independent, using GTK+ for its user interface. It also contains a converter for different match formats. Currently supported are the Smart Game Format, JellyFish, and JavaFIBS.
pySimpleQuiz lets you define a simple online quiz just by writing a very simple plain text file. The file consist of questions, answer choices, and some strings you can translate for the quiz to speak your language. A quiz consists of multiple questions each having multiple selections, from which the user has to pick the right one. After the answers are given, a score and correct answers are provided for the user. The score and the person who did the quiz are logged and one user can take the quiz only once. It does not require installation, XML, a database, a Web server, or any HTML skills.