looking for something with bad vibes and a good story, games with a similar feel to:
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Drakengard 1
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Silent Hill 2
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Signalis.
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Spec ops: The line
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Hotline Miami
edit: to be more specific, looking for something with that "Heart of Darkness" decent into madness vibe
Ace Combat Zero: The Belkan War has that going on. It's a PS2 game, but emulating it should be pretty easy on a modern PC. It's definitely got a decent into madness vibe in the story/plot, can't say more without spoiling it. It's an arcade fighter jet game, with some great levels.
Played the whole ace combat series gotta be my favorite games gameplay wise.