GDBI is a genealogy program integrator. It includes an editor and the lifelines report language. It interfaces to multiple GEDCOM databases and is most popular as a PhpGedView client. At the core is a Java API to simplify adding databases and editors.
Arylon is a lisp-based game engine for rapid prototying and development of tilebased/bitmapped games.
Dry Dock for Oolite was a tool for manipulating ship models for the open source Elite clone Oolite. It does not work on modern systems.