MAYhem 2016 (MAYHEM16.WAD)

The MAYhem series has built a PWAD for every May since 2012 and, starting with 2014, they've all been megaWADs. The project organizers have changed but the general procedure is the same. 1) Pick a texture pack in order to give the set a distinct identity. 2) Decide on some sort of limitation as a gimmick. 3) Kick the event off in May, where the bulk of the level design is (hopefully) performed. In this particular case the merry month was used for planning and logistics while the actual work was done in June. 2016 was really a tale of two gimmicks but you probably wouldn't realize either due to the necessities of the final product's presentation. It's a 21-level mapset for Boom-compatible source ports and, in spite of some promising progress, still drug ass until it was uploaded in early 2017.

Mayhem 1500 (MAYHEM15.WAD)

Every May since 2012 Doomworld community members have gotten together in an attempt to make a megaWAD in a month. It isn't polished and finalized by June, though, and it might not even be finished during the same year. The 2015 session followed in the grand tradition of MAYHEM13 insofar as it wasn't released until 2016. It is also the second of the projects to reach the symbolic status of a full game replacement, occupying MAP01-MAP32 with additional bonus levels in the MAP33 and MAP34 slots. MAYhem 1500, like its forebears, is meant to be played in a Boom-compatible source port. If you play it in something that supports a brand of MAPINFO, though, then the secret levels will transition smoothly into the extra stuff.

Way Too Many Dead Guys

Way Too Many Dead Guys is Urthar's first release, a seven-map episode for Doom II published in 2015 that targets limit-removing ports... and, the author recommends, something that also disables infinite actor height. Personally, I only ran into a couple of problems with cacodemons biting the top of my head. While this PWAD isn't on the archives yet, it's pretty much finished, and it's definitely worth a play. Urthar shows a lot of craftsmanship and a style that is very much his own in terms of architecture and what he decides to fill his architecture with.