blinkentools is a set of commandline utilities related to Blinkenlights. It includes b2b, a converter for blinkenmovies that can apply some simple effects, b2mng, which creates MNG animations from blinkenmovies, and bsend, which sends movies over the net using the Blinkenlights network protocol.
Allegro Sprite Editor (ASE) is a program specially designed with facilities to create animated sprites that can be used in some video game. It lets you create static images, characters with movement, textures, patterns, backgrounds, logos, color palettes, etc. It focuses on pixel editing to do pixel art. It isn't a photo retouching tool or a vector graphics editor. Mainly, it is a tool to create tiny animations pixel-by-pixel.
LiquidMaya is a Maya to Renderman plug-in that handles full Renderman output support with a focus on speed, efficiency, and extensibility. Its features include procedural rib generation, full network rendering support, segmented rib files, a shader assignment interface, and much more. Along with the ability to write full C++ plug-ins, it is incredibly easy to script Liquid with Mel. Liquid was used for the visual effects of the "Lord of the Rings" movie.
Autocomp is an accompaniment generator for Perl and Csound. It takes as input a text file containing chord changes, plus time signature and bpm information, and outputs a Csound .sco file containing a simple arrangement of those changes. A sample Csound .orc file containing a bass instrument, a selection of keyboard instruments, and a small sample-based drumkit is provided.
RoboRally Board editor is a Java utility for creating boards for the board game, RoboRally. It has a simple graphical interface where you choose an element of a game and place it on the board where you like it, much like an ordinary drawing program. When elements are in place you can remove, rotate, and edit them as you see fit. When you feel done you can export your board as a JPEG and print it with your favorite printing tool. The current version supports all the features of the standard RoboRally game.
Evolvotron is an interactive "generative art" application to evolve images/textures/patterns through an iterative process of random mutation and user-selection driven evolution. If you like lava lamps, and never got tired of the Mandelbrot set, this could be the software for you. It's implemented using Qt, and is multithreaded.