It's originally a birthday gift for my girlfriend, but since a lot of people (a few actually) also wanted to play, I decided to move it to github.
Not very possible at this moment. It takes a lot of time to design the stages and write out all the dialogues, check the spelling and grammar, etc.
However, I am aware that a flexible and easy-to-use text adventurer game engine is actually a great idea, so I might decide to write a brand new one (as this one is pretty limited) later on. Keep track on my github page or my main page if you are interested.