I've been meaning to try the original Crysis now that I have a computer that can play it. I started it, but then life happened.
DOOM Eternal didn't do it for me. It's Doom-ish, but not enough. It'd be a better game if it wasn't set in the Doom universe trying to add a bunch of non-Doom elements to the game. Doom (2016) did that too, but not to the same extent. I like the older Dooms mostly for their simplicity: get gun, see bad guy, shoot gun. Pick up health. Repeat. Doom Eternal did that, but added a story, weapon mods, and skills. Fine mechanics, but not Doom enough for me.
I need to try out Xonotic. I went to high school with the guy who started the original game, who runs Alientrap now.