>>714200010
Play Doom mods.
I'm going through Diamond Dragon at the moment, which is a weapon replacement mod that also comes with a built-in monster replacer plus additional compatibility patches for cyberpunk/sci fi wads. Pic related.
There's also Quake (get the Ironwail sourceport, the Kex engine used for the remaster is kind of shit) and Duke Nukem 3D or Blood.
Dusk and Ion Fury are the only decent throwback retro shooters, the others are mediocre to shit and many are outright Doom mods being sold for actual money, which is a total scam.