AMNESIA '98 is an audio-visual mod that makes Amnesia: The Dark Descent look and sound like a PS1 game, by way of shader rewrites and map edits, as well as completely remade music and down-sampled sound effects.

Originally this was just something I was messing around with to see if I could create PS1-style rendering entirely with shaders, but I liked the results so much that I figured I'd polish it up and release it in time for Halloween (which didn't work out, but it's the thought that counts). Even managed to rope a friend into redoing all the music for me, which I hadn't initially planned on doing at all, but it makes for a much more complete package.

Currently this only supports the base game. Justine support will only take a bit of work, so that's probably coming soon. Custom stories, however, will require a stripped-down version of the mod, as certain effects require map edits to work correctly (namely vertex rounding and UV warping, which require planes to be subdivided into smaller sections), so those effects need to be lessened or stripped out to work with all custom stories.


PSX Graphics Features:

  • Vertex wobble and texture warping.
  • 15-bit textures and lighting, with Bayer dithering.
  • 1/4 resolution downscaling.
    • This isn't exactly optimal, but was done for simplicity and convenience. Downscaling after rendering ensures that the image is always sharp and has pixel-perfect scaling, and functions correctly regardless of display resolution or aspect ratio.
  • Short draw distances with fog and overly-aggressive culling.
  • Normal maps? Specularity? Mipmaps? Never heard of 'em.
  • Greatly reduced decals and particle systems.
  • Absurdly low FOV.
  • Simplified special effects.
  • Lots of other small things.

PSX Audio Features:

  • All music completely remade using period-appropriate synths and authentic 90s cheese.
  • Sound effects resampled at lower rates.

Installation is a bit involved, but follow the README and you should be fine.

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AMNESIA '98 Patch 1.1

AMNESIA '98 Patch 1.1

Patch 2 comments

Fixes maps in initial release being older, outdated versions due to a level editor saving bug. This manifested as wiggly/stretchy floors in some areas...

AMNESIA '98 v1.0

AMNESIA '98 v1.0

Full Version

Initial release of AMNESIA '98. Support for Justine and custom stories to come in later/separate versions.

Comments  (0 - 10 of 33)
SkyOnModDB
SkyOnModDB

The door leading to Daniel's note in Old Archives does not open

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Guest
Guest

I had the same problem! Here's how to fix: Go to maps folders, each chapter, and delete the cache files. Very easy, though I didn't think to do this for a couple hours, despite my experience with this game!

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jacko.-
jacko.-

nice mod

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Macgyverthehero
Macgyverthehero

So far I'm really enjoying the new aesthetic for the game. The soundtrack is neat too. Awesome mod!

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Darkfire_Productions
Darkfire_Productions

Now this is something trully original. Nice job!

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Guest
Guest

this is really extra cool, i am enjoying thanks

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TiManGames
TiManGames

I have an issue:
The UV of every plane in any map is being stretched based on my direction of camera movement. It's like a constant wobbly texture.

I have an AMD processor and RTX 2070 if it matters.

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Stayd Creator
Stayd

The UV warping is intentional, that's a real artifact of PS1 rendering that I wanted to recreate. However, the warping should be fairly subtle, so if it seems really overpowering then the mod may not have been installed/set-up correctly.
Is cache loading disabled in your game config, and did you install the 1.1 patch?

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TiManGames
TiManGames

Yeah, I have the game from steam, so it's updated. The cache loading is disabled.
Maybe I have to change something in the nvidia control panel?

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Stayd Creator
Stayd

No, I mean the 1.1 patch for this mod, not for the game.

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TiManGames
TiManGames

Oh, I totally missed that update. It's fixed now, thanks.

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Style
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Adventure
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Horror
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Single Player
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