I haven't made a walkthrough for Haven and I didn't plan for a walkthrough for Horizon since they are somewhat easier to play than Hotel. The non-linear stile of the games would make it hard for me to do that without removing a lot of what makes them interesting. If there are a lot of people asking for help after I am done with the game I might do a tips and hint collection of sorts.
Until then I don't mind helping out if you are stuck. In this case it showed me a an issue that shouldn't be there
So I got to fix it in the code.