CurseForge · Minecraft mod

ArchaicFix

Swiss army knife of bugfixes and performance improvements for MC 1.7.10

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which ArchaicFix release should I use?

Updated 2 months ago

Latest stable file archaicfix-0.8.0.jar

Game version 1.7.10

Loader Forge

archaicfix-0.8.0.jar targets 1.7.10 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.

Where it goes

Is ArchaicFix required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say

Dedicated server Source doesn’t say

Loader for this release Forge

Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does archaicfix-0.8.0.jar need?

archaicfix-0.8.0.jar. Change the file and its required mods may change too.

All 1 required mods have matching files

Install UniMixins first. We found matching files for this game-version and loader setup.

UniMixins Needed by archaicfix-0.8.0.jar

required

Matching file found Matched file: UniMixins 0.3.1

We only count dependency files that match this setup. A file for another loader does not fill the gap.

Before you install it

Add ArchaicFix without breaking your instance.

Built for archaicfix-0.8.0.jar. Pick another file and the loader, install side or required mods may change.

01
Stick to this file

Use archaicfix-0.8.0.jar. It targets 1.7.10 with Forge; another release may have different loader, side or dependency requirements.
02
Bring the mods it needs

Install UniMixins first. We found matching files for this game-version and loader setup.
03
Put it on the correct side

The project page does not say whether this file belongs on the client, dedicated server, or both.
04
Pick the file you checked

Use the “Get this file” button beside archaicfix-0.8.0.jar. It opens that exact file at the source.

About this project

What does ArchaicFix add?

ArchaicFix implements a number of bugfixes and optimizations for Minecraft 1.7.10. Please see the README on GitHub for a more complete list, but here are a few highlights:

Removes/reduces the infamous client-side stuttering in 1.7.10, particularly in biomes with many light updates like jungles
Backport of the Phosphor lighting engine (the original repository is no longer available, this link leads to my 1.12 fork which is the closest to the original, and still has the original branch)
Many other fixes for various vanilla issues

Additionally, ArchaicFix patches a few common annoyances in other mods.

Newer versions of ArchaicFix require a GTNHMixins-compatible mixin loader like UniMixins to be installed.

Project description from CurseForge.

Pick your setup

ArchaicFix by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

1 available setups

Minecraft version

1.7.10

1 loader build

Forge archaicfix-0.8.0.jar 22 stable files · 22 total · 21 May 2026

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

ArchaicFix versions and loaders

22 of 22 releases match

archaicfix-0.8.0.jar

21 May 2026

Client Source doesn’t say Server Source doesn’t say Dependencies 1 required · matched Listed on Release listing

Check the 1.7.10 · Forge setup

Forge1.7.10 release

Download on CurseForge