A Tangram Puzzle Solver in Common Lisp that is capable of solving arbitrary geometric tiling problems. CLIM (Common Lisp Interface Manager) is used for its GUI.

A File-Based Fully Automatic Lisp Datastructure Serializer / Persistency Manager, Similar to "Pickle" for Python

Labyrinth/mazes generator in Common Lisp

A toolkit for FileMaker plug-in developments in Common Lisp

Edi Weitz's LispOld files

A Simple Petri Net Editor and Simulator written in Common Lisp with CLIM (Common Lisp Interface Manager) GUI

The classic 3x3 sliding Puzzle Game.

A quicklisp graphical interface

An Editor with Generic Semantics for Formal Reasoning About Visual Notations

A Git Porcelain inside LispWorks

An Ontology Visualization & Authoring Workbench for KRSS-Based Description Logic & OWL Reasoners