MAYhem 2012 is a 12-level PWAD for Boom-compatible source ports, created by members of the Doomworld forums in May 2012. It was the first WAD in the MAYhem series, which has continued annually every year since.
The concept of the MAYhem series and its resulting project was started by TheMionicDonut. The initial goal was for a full megawad to be completed within the month of May, although the inaugural session fell short, gathering twelve maps. In fact, the goal of 32 maps was not achieved until 2014.
Following the mapping period, MAYhem 2012 saw its final release on 17 July of the same year. It has received mostly positive reviews.