The Shitstorm is an annual month-long event in October in which Matt and Pat (and occasionally Woolie and Liam) play a horror game every day. Though each day is typically a one-off, there are some exceptions, as Shitstorm 3: Shittribution featuring three semi-full Let's Plays and a week of one-offs and Shitstorm of Scariness and Shitstorm 4: Matt & Pat's Scariness Marathon ended with the first episodes of Eternal Darkness and Soma, respectively.
The series began in 2012 and has been ongoing every year since.
- Shitstorm of Scariness (2012)
- Shitstorm 2: The Shittening (2013)
- Shitstorm 3: Shittribution (2014)
- Shitstorm 4: Matt & Pat's Scariness Marathon (2015)
- Shitstorm V: Shitsurrection (2016)
- The episodes for the Shitstorm are often recorded long in advance in preparation for the month of October. The Shitstorm 4 episode Clock Tower, for example, was recorded before August 25, 2015.