Resurgence (RESURGE.WAD)

Joshy released Surge in early 2012. It was an unfinished collection of speedmaps built upon the idea of forcing the player to "surge" forward through the level's action in order to clear a spot that was safe enough to stand in. After a hiatus from mapping, Joshy picked it up again and finished the set for release in 2014, re-branding it as Resurgence. Like its progenitor and Speed of Doom, this is a megaWAD for Boom-compatible ports that emphasizes gut-busting action and intelligent, fast-on-your-feet decision making. Unlike Surge, there's actually something of a story, with you waking up from the oblivion of death and having to fight your way out of Hell and back to the realm of the living on Titan before you can put a stop to Hell's invasion. Something goes wrong on the way, of course, and you're launched into the future where Hell is completely entrenched, but it wouldn't be a Joshy map if you weren't facing overwhelming odds.

Speed of Doom (SODFINAL.WAD)

No one really knows what contemporary mapsets will enter the "canon" of Doom, but I think you could make a strong argument that Speed of Doom has been strongly woven into the rich tapestry of user-created content. I've seen at least a handful of authors citing it as an influence on their own works and plenty of players, especially in the slaughter crowd, have espoused their love of Josh "Joshy" Sealy and partner in crime Darkwave0000. It is a super-hard megaWAD for Boom compatible ports, released in 2010 after a development cycle of "speedmapping" that gave way to a year of production. That's still faster than many of the high-profile megaWADs being released today, and most of those are team projects!