Logo++ - Simplified syntax Logo, can draw complex graphics with a few lines of code. Runs in graphical environment (Linux X11, Windows); has own editor; coded in C++. [Open Source, GPL] Terrapin Tools for Thinking - Logo software for home and schools, including Terrapin Logo, Kinderlogo, Crystal Rain Forest, turtle robots, support for Lego's Mindstorm RCX Robotic kit; also Logo projects, tips, lessons, other resources. Object Oriented Programming extensions - For MSWLogo or UCBLogo. P. A. Dreyfuss. Yellow Brick Logo - MIT Yellow Brick Logo (MIT-YBL) is an implementation of the Logo language for the LEGO RCX Brick. Includes: An MIT-written replacement for the firmware operating system that is loaded into the RCX Brick, and Software that runs on a Macintosh or Windows 95/98 computer to implement a text-based Logo interface to the RCX Brick. StarLogo - Specialized Logo version which lets you to control thousands of graphic turtles in parallel, which can be programmed to react to their environment. MIT. XLogo - A logo learning and drawing application written in Objective-C for Mac OS X. [Open source, BSD License] Jeff Skrysak. StarLogoT - An extended version of StarLogo 2.0.4 for the Macintosh is available for download. Also projects, documentation, models, links and resources. MIT. Berkeley Logo - Downloadable Logo books and free UCBLogo (Berkeley Logo); links to other Logo versions. Brian Harvey. Liogo - Logo interpreter for .NET that compiles to EXE or dynamically loadable DLL; compatible with UCB Logo. Leonel Laske. [Open Source, GPL] Imagine Logo (Secondary) - Offers web integration, powerful animation and multimedia capability. Logotron Ltd. Imagine Logo - A multimedia version of SuperLogo, designed for ease of use by children. Can save projects to the web or as standalone .exe programs. Logotron Ltd. KTurtle - Logo-inspired open-source translatable programming environment for the KDE Desktop. Cies Breijs. TurtleTracks Logo - Versions for Java, J# for .NET, partial on-going port to C# using MS JLCA: Java Language Conversion Assistant. Downloads, documents. TinyLogo - Simple Logo-based language with turtle graphics designed for 3Com Palm systems. Version 1.1 (1999), includes documentation. Timothy Lipitz. Turbo Turtle - A high performance open source Logo compiler designed for animations, using OpenGL. Includes demo Logo programs for Linux and Windows. Richard Goedeken.