itch.io - An online game marketplace and community.
RANDOM.ORG - RANDOM.ORG offers true random numbers to anyone on the Internet.
GOG.com - DRM-free game store, selling both new and old titles. No clients required.
GeneratorMix - A place with hundreds of generators split into different categories from science to entertainment.
GnuPlot - Gnuplot is a portable command-line driven interactive data and function plotting utility.
Randommer - Generate random number, telephone numbers, text, hashed and social security numbers