https://store.steampowered.com/app/1943240/Dismantled_Directors_Cut/
FPS Resident Evil with furries, absolutely bleak, mercilessly hard, and cryptic as fuck. Try it if you miss the psycho murderhobo game aesthetics from 2000's.
https://store.steampowered.com/app/556710/Marrow/
Lovecraftian horror-metroidvania with godtier atmosphere, utterly hardcore difficulty, and with no generic le tentacles. If you liked ESA, La Mulana, and grew on NES, you'll probably get into this one too.
https://store.steampowered.com/app/1878350/Prayer_of_the_Faithless/
Dark jrpg in vein of Dhux Scar and Seraphic Blue, with custom made combat and decent story/chars. For those who're into RPGMaker stuff from its golden age.
https://store.steampowered.com/app/607780/Toymaker/
Atmospheric jrpg in Laplandian horror setting, the sprites are somewhat wacky, but the atmosphere and the music are top notch. For those who like paranoidal subtle horror vibes like Lavender Town in Pokemon etc.
https://store.steampowered.com/app/1184040/D1896/
Story driven platformer with godtier artstyle, cheap 3 frame animations, and weird clunky combat. The dialogues alone written by a lonely Lithuanian schizo dev make it worth playing.
https://store.steampowered.com/app/1463450/Fallstreak_Requiem_for_my_Homeland/
Apocalyptic utsuge with SCP-like setting+military, feels inspired by Fata Morgana. The whole series is a hidden gem.
https://store.steampowered.com/app/2641420/Vindictive_Drive_2_Maidbot_Archive/
Janky, unbalanced, but somehow still entertaining twin stick where you choose an anime girl with different abilities to serve as your shooting satellite. Sadly, English VO only.
https://store.steampowered.com/app/1771880/UNDEMON/
Korean retro platformer about a ghost girl killed by a certain evil corporation and now taking revenge. Got the nostalgic dos vibe and decent story, but can get really assmelting hardcore in some sections.