The Plutonia Experiment for the first time. Played Doom when it was first out, as a kid, and now bound and determined to get through everything in order including the ones I never bothered with before. Up to Final Doom, which I never had as a kid and ignored as an adult. Beat Evilution, which really didn't do it for me, but now the clever strategic stuff in Plutonia is just wonderful.
That is, until MAP24, when it pulls some BS: huge marathon level with a screw-you permanently missable literally opaque secret in the first second. You're not being clever, guy, you're being a jackass.
(hi I'm new)