I managed to destroy myself something in the tutorials, and I would need to download them again. Apparently I have to re-install the whole Esenthel Engine to achieve that. Shouldn't we have just a download for the Tutorials and the Bloody Massacre projects?

Delete the tutorials-I'm pretty sure the auto-update will re-download them.

Oh. I should have tried that. Already re-installed the game. I thought Blood massacre would be there too, but it wasn't. What happened with it?

Bloody Massacre is a separate download.