THT: Threnody (THTTHREN.WAD)

You don't maintain the /idgames archives for eighteen years, marshal the Doom community's longest-lived and most productive authorship collective, and found what became the de-facto standard for "advanced" source port features without getting some kind of a send-off. While we were fortunate enough to pass him the Espi award in 2014 it wasn't until he died in 2015 that community members attempted to pay their respects in a more familiar format. The end result of the Ty Halderman Tribute Project: Threnody, a 20-level megaWAD for Boom released in 2016.

Mutiny (MUTINY.WAD)

40oz had a dream, a dream of making a megaWAD with a dystopian Cyberpunk theme that leveraged the gimmick of collaboration. It was a great idea and Vail obviously had his expectations dialed back early since he was looking to compile sixteen levels. However, while bromancing maps worked pretty well for his and Super Jamie's UAC Ultra, the vast majority of the community's authors seem more inclined to tag-team megaWADs a la Speed of Doom than trust their artistry to a complete stranger. I can only assume that this issue was compounded by people perhaps taking up slots and then having others too skittish to follow. As a result, Mutiny took longer than 40oz really expected and saw release a year later in 2016. It's still pretty cool, though.