There is also Joyce's Java Version of Euclid's Elements:

https://mathcs.clarku.edu/~djoyce/java/elements/elements.htm...

and I'm still impressed by the custom Unity tools which Freya Holmér uses for her videos:

https://www.youtube.com/watch?v=jvPPXbo87ds

Wish Geogebra was both more capable and widely used:

https://www.geogebra.org/

That said, these days if I need to plot out something I just use OpenSCAD: https://openscad.org/ (or, the Python-enabled version: https://pythonscad.org/ )