Artificial Worlds

Eden - A networked, self-generating artificial ecosystem by John McCormack. A CD-ROM version for Macintosh and Windows is available for on-line purchase.
http://www.csse.monash.edu.au/~jonmc/projects/eden/eden.html

The Virtual FishTank - Designed for people of all ages, the FishTank offers firsthand experiences in creating artificial life forms and reveals how simple behavioral rules can produce complex and surprising results.
http://www.virtualfishtank.com/

JuhasWorld - JuhasWorld: Yes it's alive! You have to see this applet to believe it. Just let those actors evolve for a few generations and they suddenly seem quite clever indeed. Wait a few more generations and you will be completely hooked: How good can they get?
http://www.geocities.com/SiliconValley/Bit/4699/

NecroBones Artificial Life Experiments - Features three Java artificial life experiments.
http://www.necrobones.com/alife/

PolyWorld Information (author's site) - Source of information, technical report, and source code for the PolyWorld computational ecology, maintained by Larry Yaeger, PolyWorld's author. (This site contains more up to date links and information than the PolyWorld page at the Santa Fe Institute site.)
http://www.beanblossom.in.us/larryy/PolyWorld.html

Hardware Artificial Life (HAL) - Lotus Artificial Life's Java cellular automata substrate capable of supporting evolving, self-reproducing organisms which are capable of universal computation.
http://www.alife.co.uk/hal/index.html

Red Bird Island: Artificial Life - Simple world with automata that act to form complex systems. Implimented on the Macintosh.
http://homepage.mac.com/redbird/brew/alife.html

E-den - Freeware artificial life program designed for Windows. 2-dimensional evolutionary world with simulated neurons.
http://www.geocities.com/ResearchTriangle/Forum/3830/

Quantum Flux: The Virtual Intelligence Matrix - A model of human brain function designed by a neuroscientist at UCSD. The VIM is used to drive 3D characters who live in virtual worlds and can express emotion and creativity.
http://www.qflux.org/

Java, Artificial Life, and creature behaviour - Java application simulates creature behaviours and movement. Available for free download, including source code, and a paper on Artificial Life.
http://skyscraper.fortunecity.com/altavista/819/

Individual-Based Fish Modeling At Humboldt State University - Modeling software, theory, and applications. Instream flow model for trout. Salmon out-migration survival simulator.
http://www.humboldt.edu/~ecomodel/

Darwin Pond - An imaginary gene pool, a primordial puddle of genetic surprises. Free download; Windows.
http://www.ventrella.com/Darwin/darwin.html

Ant Farm Simulator - A VB based simulator of food-gathering behavior of ant colonies. Executable and VB source code are available.
http://www.geocities.com/chamonate/hormigas/antfarm/

Genesis - A project being developed by David Stern at Cambridge university. Available in stand alone or '@home' flavours.
http://www.srcf.ucam.org/~dhs26/genesis_public/index.html

Critters - Agents evolve to stay on the screen.
http://www.oursland.net/projects/critters/

Pandamat - Highlights the Pandamat artificial intelligence system.
http://www.cswnet.com/~jwhitled/thesis.htm

The MatremPage - An experiment in artificial life, and a game as well, where players create new animals to struggle and survive.
http://www.phys.uu.nl/~romans