1. CLEE
    Unmaintained libevent bindings
  2. clem
    A library for representing and performing various operations on matrices
  3. CLERIC
    CLERIC (Common Lisp Erlang Interface) is an implementation of the Erlang distribution protocol, comparable with erl_interface and jinterface
  4. clerk
    Clerk is a cron-like scheduler for tasks to execute at given intervals
  5. clesh
    Clesh is a library that makes it possible to embed
  6. Cletris
    Cletris is a Tetris-like Game
  7. cleven
    Cleven is an experimental game engine with volume graphics written in Common Lisp
  8. CLEWS
    Common Lisp Educational Web Server (CLEWS) is a platform for developing educational web applications, providing systems for peer-review assessments, discussion assessments, adaptive tutorials and course management
  9. clfswm
    CLFSWM is a 100% Common Lisp X11 window manager (based on Tinywm and Stumpwm
  10. clg
    Espen Johnsen's GTK bindings for CMUCL, SBCL and CLISP