Saturation patch/plugin sounds similar to Jamoma Saturation?

Jamoma (you can find the pack) Saturation (saturation~.model) is very useful in music production. It can go between subtle saturation to evil destruction, and most importantly, it is amazingly CPU friendly.
But because of its unique internal structure, when using as an amxd, it starts to behave weirdly with recalling parameters. As the development of Jamoma seems inactive, I am trying to find something similar.
Fortunately, Jamoma has the C++ version, so if I can't find something similar, I might end up learning C++ and making my own version using their core idea.