S# is a weakly-typed dynamic language and runtime infrastructure to make your applications extendable, customizable and highly flexible. It allows introducing expressions and large code blocks evaluation within your applications in the similar way Microsoft Office deals with VBScript, gives you possibilities providing rich formula evaluation capabilities like it can be seen in MS Excel and other office applications.
Why do you think that https://github.com/polterguy/lizzie is a good alternative to SSharp