Currently playing John Romero's SIGIL 2, which for some bizarre reason did not work for me via Crispy Doom despite it being tested with it being mentioned in the readme file (no episode select for it appears), so I am stuck with GZDoom which I then had to make as retro as possible. Ick.
I also played through Base Ganymede earlier in the year for Ultimate DOOM, as well as two Wolfenstein 3D mods (TFS 4.0 and Oldfartenstein, the latter actually getting a Linux native build), and just wrapped up two new Blood campaigns via NBlood (Fate of the Damned: The Shadow Out of Time, and MARROW). Still planning to get to Doom 64.