For three years now, Cat and Mouse transform Plovdiv into the craft beer capital of Bulgaria during the warm months with the organization of Two-Three Beers Fest. The event is entirely dedicated to craft beer culture and allows visitors to sample nearly 100 different beers. The festival gathers Bulgarian craft brewers, foreign guest breweries, craft beer distributors and thousands of their fans each year at specially selected locations.

The first edition of Two-three beers fest was held in the spring of 2017 under the open skies, in the Kapana district. In 2018, the festival took a look at the iconic Tobacco city, which welcomed the beer culture on June 16 and 17. In 2019, the focus was on the top city centre, namely the liveliest place under the hills - part of Central Square. The concept of Two-three beers fest is to present the craft beer, but also to bring into focus key and often problematic urban areas with potential.