[eluser]kilishan[/eluser]
Basketcase - Ci and HMVC are already part of the package. Unzip the archive, and drop it in your XAMPP htdocs folder. From there you should be able to get the installer started at localhost/install (or localhost/bonfire/install or whatever folder you installed it in).
You will need to have a database created for it, but the installer should take care of setting up your database settings and entering your user account into the database, as well as standard table setup in the db. From there you can login and start playing.
