During his high school days he already made a Doom mod called Grezzo ('rough' or 'of low quality'), with the original maps but different sounds and sprites for the enemies. The creator had always been an avid fan of Doom and in general of video games from the '90s (in particular FPSes) characterized by gratuitous and cheap violence. It can be downloaded from the official website. In the summer of 2013, the expansion pack Viaggio a Merdjugorje ('Trip to Shitjugorje' note the Italian title is a pun on 'merda' (shit) and Medjugorje ) was released, and in December of the same year, the final version of Grezzo 2 was released on the occasion of the game's first anniversary. The first trailer was released in February 2012 preceded by some video demonstrations after a demo, the first complete version was released in Christmas the same year. Grezzo 2 (Full name: Grezzo Due - Una Magica Avventura note 'Grezzo Two - A Magical Adventure') is an Italian total conversion of Doom II, developed by Nicola Piro. Grezzo 2 description on the official website