Common lisp macros for easy type declaration within definitions of functions and variables.
Library for working with two-dimensional cartesian coordinates.
Extension for Emacs org mode, for "flashcard" self-testing using spaced repetition algorithms (as seen in programs like Anki, Mnemosyne and SuperMemo).
Common Lisp bindings for the Doryen Library (http://doryen.eptalys.net/libtcod/).
Common lisp library for fast computation of two-dimensional distance maps using the Dijkstra algorithm. Obstacle cells and multiple root cells can be specified.
Tim Bradshaw's "abstract-class", "final-class" and "singleton-class" metaclasses for the Common Lisp Object System (CLOS).
Console-based "graphical" user interface using libtcod, and written in Common Lisp.
Probability tables ("ptables") emulate (and surpass in functionality) the "levelled lists" that are used to randomly generate loot and encounters in the Elder Scrolls games.
Common lisp library for two dimensional binary space partitioning.
Simple Common Lisp implementation of behaviour trees.