The FactSage package consists of a series of information, database and calculation modules that enable one to access pure substances and solution databases and perform thermochemical equilibrium calculations. FactSage was originally founded by processing pyrometallurgists and has expanded its applications to include hydrometallurgy, electrometallurgy, corrosion, glass technology, combustion, ceramics, geology, environmental studies, etc. With the various modules one can perform a wide variety of thermochemical calculations and generate tables and graphs of complex chemical equilibria and phase diagrams for multic-omponent systems. This paper presents examples of the recent developments in the software and databases in the areas of particular interest to Dr. Robertson. These include both ferrous and non-ferrous processing, as well as solidification and refining simulation. The presentation also includes reference to the Internet Fact-Web education package ( Refs: www.factsage.com and www.crct.polymtl.ca/factweb.php.