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Inverted Quality

Inverts the Quality system to negative tiers (positive tiers are removed). Crafting items has a two-thirds chance to reduce their quality by one tier. Items in the lowest tier are nonfunctional. The new Downgrade Port allows high-quality items to be used in low-quality recipes, and the Meltdown Facility allows the melting down of low-quality items back into Normal base materials. Map sliders for higher resources are recommended.

Latest version
1.5.2
Downloads
566
Licence
gnugplv3
Updated
4 mo ago

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Download

From Inverted Quality’s own host. Nothing is re-hosted here.

1.5.2release29 May 2026

Inverted-Quality_1.5.2.zip

857a10be945b
Older versions24
  • 1.5.026 Aug 20252.0Get
  • 1.4.431 Jul 20252.0Get
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  • 1.1.04 May 20252.0Get
  • 1.0.93 May 20252.0Get
  • 1.0.83 May 20252.0Get
  • 1.0.72 May 20252.0Get
  • 1.0.62 May 20252.0Get

Frequently asked

What licence is Inverted Quality under?

gnugplv3, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Inverted Quality?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the modpack and Factorio all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Inverted Quality safely?

From the author's own page on Factorio Mod Portal, which is where the data here is synced from. IndexGG never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Which Factorio versions does Inverted Quality work on?

The author has not declared a supported version in the metadata we sync, so there is nothing here we can state as fact. Check the project's own page before installing it, and treat an old modpack with no declared version as untested on modern Factorio.

Last checked 1 mo ago against Factorio Mod Portal. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Not indexed yet. Score 35 against a threshold of 55. The page still exists and is still linked; it simply carries noindex until we hold more.