During development I have used a short adventure (about 8 hours playtime from start to finish) to try the system out. I am currently formalizing it into a format that would be understandable for anyone but myself. So, soon there will be an introductory adventure for AOIAMCAA (A one in a million chance at adventure). 

The Murder of Dommik Kolchak is an adventure inspired by murder mysteries, such as Agatha Christie. It will take you from Ankh-Morpork to Überwald, it will introduce you to some of the social dynamics of the Disc and it will give ample opportunity to try out the rules.