Qmaster has dug up and released five old(er) maps he made in 2008-2016:
A very small level based on E4M3, mostly populated by fiends.
A very small ruined cathedral with a graveyard and arena combat based off a Scottish castle seen in some magazine.
Small level based on E4M4: The Ebon Fortress, originally made for some abandoned mod.
Medium-sized “hipmetal” level for Quake Mission Pack No. 1 - Scourge of Armagon, featuring lightning gun combat against Vores and Scourges.
Medium-sized green metal map with lightning gun-focused combat.
And there’s a new map by xlarve called https://www.quaddicted.com/reviews/xld.html
A large metal/runic/mixed-texture dungeon with relentless arena combat in small rooms and tight corridors, 500+ monsters in total. “For experienced players”!