If you have heard whispers in the community about "maps that take six hours to beat" or "visuals that crash your source port," you have heard of Sunder. Created by the enigmatic mapper known as (later updated by other community members), Sunder is not merely a mapset; it is a war of attrition.
is a legendary, highly influential custom mapset (WAD) for Doom II created by the developer Insane_Gazebo . Released initially in 2009 with 14 maps, Sunder revolutionized the "slaughter WAD" subgenre. It combined hyper-difficult combat against thousands of monsters with breathtaking, monolithic architecture. doom 2 sunder