1. CLNUPlot
    CLNUPlot connects Common Lisp to GNUPlot
  2. cloak
    cloak is an experimental implementation of the JVM for SBCL on Linux/x86
  3. Clobber
    An ObjectStore which aims to be a simpler, more flexible, and more robust alternative to CommonLispPrevalence systems, especially cl-prevalence
  4. CLOCC
    The Common Lisp Open Code Collection contains Lisp code for various
  5. clocc-port
    CLOCC includes a library PORT which unifies many things across different implementations, such as socket interfaces, shell access, and gray streams
  6. clod
    CLOD is a Common Lisp doc-generator, similar to Albert, Cldoc and so on
  7. clods-export
    clods-export provides functionality for writing spreadsheet files in the OpenDocument Spreadsheet (.ods) file format
  8. CLOG
    CLOG is a GUI that uses web technology and also a web framework and includes a full Common Lisp IDE and GUI Builder
  9. clois-lane
    clois-lane provides bindings to the Object-Oriented Input System (OIS) for such things as game controllers
  10. Clon
    There are three packages by the name of CLON, although the third one doesn't actually introduce any conflict because the package is named net.didierverna.clon