frecell
It's FreeCell with tcell.

FAQ
Why is the name spelled wrong?
I initially made a mistake when I was typing the directory name, like this:
$ mkdir frecell
$ # Oops!
But I quickly realized, hey, maybe I should have a name other than "freecell", so as to make my project distinctive and searchable! (Actually I was just too lazy to fix it.) So the name is now "frecell".