T Scheme-like language developed at Yale; is to Scheme rather as NIL is to Lisp; mainly of interest to historians and theoreticians. FTP for v3.1. ftp://ftp.cs.indiana.edu/pub/scheme-repository/imp/t/ Indiana.edu~Site InfoWhoisTrace RouteRBL Check
3DScheme Two systems for Windows with built in "industrial-strength" solid modeler based on the ACIS solid modeler Geometric Modeling Kernel. http://www.schemers.com/3dscm1.html Schemers.com~Site InfoWhoisTrace RouteRBL Check
EdScheme Interpreter for Macintosh or Windows. Has "friendly and convenient interactive programming environment" with language sensitive editor, full documentation. [commercial, free 14 day download] http://www.schemers.com/edschem.html Schemers.com~Site InfoWhoisTrace RouteRBL Check
SIOD: Scheme in One Defun Very small, portable implementation, has some database, Unix programming, CGI scripting extensions. Runs on DOS, Linux, Unix, Windows. Free source downloads. http://people.delphiforums.com/gjc/siod.html Delphiforums.com~Site InfoWhoisTrace RouteRBL Check
Scheme 48 A small and portable implementation based on a bytecode interpreter designed to be used as a testbed for experiments in implementation techniques. http://s48.org/ S48.org~Site InfoWhoisTrace RouteRBL Check
TinyScheme Based on Mini-Scheme, tiny implementation, almost a full R5RS Scheme. Goal: embedded scripting use, but works as standalone interpreter and extensible shell tool. Recent changes reduced executable size to about 64KB on Linux/x86. [BSD] http://tinyscheme.sourceforge.net/ Sourceforge.net~Site InfoWhoisTrace RouteRBL Check