Topology and Geometry Software
Science, Math, Topology, Software - Topology and Geometry Software. A collection of educational, graphical and research software by Jeff Weeks.
https://www.geometrygames.org/
Geomview
Science, Math, Topology, Software - Geomview. Interactive 3D viewing program for Unix.
http://www.geomview.org/
Dan Christensen's Home Page
Science, Math, Topology, People - Christensen, Dan. Department of Mathematics at the University of Western Ontario.
http://jdc.math.uwo.ca/