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  • More outdated mods added to the list with recommendations.
  • Corrected some descriptions.
  • Target Dummy downgrade Recommendation.
  • Added a section about MCreator and AI mods
  • Added a list of Cleanroom Loader exclusive mod replacements
  • Fixed a lot of formatting and typos

- **[Stellar Core](https://www.curseforge.com/minecraft/mc-mods/stellarcore)** : Provides extensive bug fixes, performance improvements, and additional features across a wide range of mods.
- **[Gnetum](https://www.curseforge.com/minecraft/mc-mods/gnetum)** : Improves performance by distributing HUD updates over multiple frames.
- **[Fixeroo](https://www.curseforge.com/minecraft/mc-mods/xp-orb-clump)** : Bundles bugfixes and Xp orbs optimisations.
- **[Alfheim Lighting Engine](https://www.curseforge.com/minecraft/mc-mods/alfheim-lighting-engine)** : lighting engine replacement for Minecraft, optimized for performance and fixing many bugs.
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@WaitingIdly WaitingIdly Jan 12, 2026

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Suggested change
- **[Alfheim Lighting Engine](https://www.curseforge.com/minecraft/mc-mods/alfheim-lighting-engine)** : lighting engine replacement for Minecraft, optimized for performance and fixing many bugs.
- **[Alfheim Lighting Engine](https://www.curseforge.com/minecraft/mc-mods/alfheim-lighting-engine)** : Lighting engine replacement for Minecraft, optimized for performance and fixing many bugs.

@@ -48,143 +49,197 @@ Universal Tweaks supersedes a lot of mods which will be mostly not mentioned her

The most prominent Render optimization mods for **Minecraft 1.12.2** are:

- **[Optifine](https://optifine.net/adloadx?f=preview_OptiFine_1.12.2_HD_U_G6_pre1.jar&x=c2f6)**
- **[Celeritas](https://github.com/kappa-maintainer/Celeritas-auto-build/releases)** (Requires **_Cleanroom Loader_**, use the [version 2.3.0](https://github.com/kappa-maintainer/Celeritas-auto-build/releases/download/release%2F2.3.0-dev.13-54-g9e892798-20250819T004238/celeritas-forge-mc12.2-2.3.0-dev.jar) since 2.4.0 breaks with CensoredASM)
- **[OptiFine](https://optifine.net/adloadx?f=preview_OptiFine_1.12.2_HD_U_G6_pre1.jar&x=c2f6)**
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::: info Note {id="note"}
Performance varies depending on your hardware and drivers. Test all three mods to see which provides the best results for your system.<br>
:::

## MCreator and AI Generated Mods

Old and new 1.12.2 mods made with MCreator are highly not recommended for use no matter what kind of mod it is. MCreator in 1.12.2 is no longer officially supported and mods created with it have significant issues that will impact your game, such as unoptimized code, hardcoded IDs, NBT data breakage and difficulty to debug the generated code. [You can use this tool to detect MCreator mods](https://github.com/darklysteamgear/mcreatorDetector) if you want a quick way of finding out which mods are MCreator. <br> <br>
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serial comma needed here: breakage, and difficulty
can also use crash assistant - the modlist generated notes if the mod is mcreator.

Mods that were created entirely using generated code from AI (rather than as a learning tool) are also highly not recommended, the mod's code will be highly varied in quality (often poor), it can also be either prone to crashes or downright placebos, especially if it is a performance related mod. <br> <br>

::: info Note {id="note"}
If you're new to mod creation and want to start making a mod, we highly recommend creating the mod from scratch instead to avoid complications with learning.
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perhaps a "how to learn how to mod for cleanroom 1.12.2" page should be created, with this linking to that?

- **[Stellar Core](https://www.curseforge.com/minecraft/mc-mods/stellarcore)** : Provides extensive bug fixes, performance improvements, and additional features across a wide range of mods
- **[Gnetum](https://www.curseforge.com/minecraft/mc-mods/gnetum)** : Improves performance by distributing HUD updates over multiple frames
- **[Fixeroo](https://www.curseforge.com/minecraft/mc-mods/xp-orb-clump)** : Bundles bugfixes and Xp orbs optimisations
- **[CensoredASM](https://www.curseforge.com/minecraft/mc-mods/lolasm)** : Huge optimizations that are targeted at Minecraft 1.12.2.
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theres a ** : Text pattern in this section - remove the space after the bold, so **: Text

| **Baubles** | Outdated | :white_check_mark: Use **[Bubbles](https://www.curseforge.com/minecraft/mc-mods/bubbles-a-baubles-fork)** <br> <br> If incompatibilities occur, [report it here](https://github.com/CaliforniaDemise/Bubbles/issues) or revert to Baubles. **Use other Baubles or Bubbles forks not listed here at your own discretion as there are many of them!** |
| **Custom Mob Spawner** | Breaks mob spawns from almost every other mod. Salvaged features were merged into Mo' Creatures Extended and Universal Tweaks. | :no_entry_sign: Remove <br> <br> **Increased Spawn Caps**: <br> :white_check_mark: Use **[Universal Tweaks](https://www.curseforge.com/minecraft/mc-mods/universal-tweaks)** |
| **FermiumASM / BlahajASM** | **FermiumASM**: Fork of NormalASM that disables fixes with Dynamic Trees and changes the MixinBooter dependency to use FermiumBooter instead. <br> <br> **BlahajASM**: Fork of FermiumASM that reverts the FermiumBooter dependency change. <br> <br> As well as all of them being slow to sync to upstream, it is overall not recommended to use any of the **many** CensoredASM forks. | :white_check_mark: Use **[CensoredASM](https://www.curseforge.com/minecraft/mc-mods/lolasm)** |
| **FermiumBooter** | Clone of MixinBooter with less benefits, as well as being an unnecessary dependency that can be swapped out for MixinBooter if the mod author decides to switch to it. | :white_check_mark: Use **[MixinBooter](https://www.curseforge.com/minecraft/mc-mods/mixin-booter)** |
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for several mods, this cannot be replaced with mixinbooter. it causes no issues to have it installed. remove it from this list

Comment on lines +100 to +101
| **MixinBootstrap** | Not Required with latest Mixinbooter. | :no_entry_sign: Remove |
| **Mixin 0.7-0.8 Compatibility (MixinCompat)** | Not Required with latest Mixinbooter. | :no_entry_sign: Remove |
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should capitalize MixinBooter

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| **MixinBootstrap** | Not Required with latest Mixinbooter. | :no_entry_sign: Remove |
| **Mixin 0.7-0.8 Compatibility (MixinCompat)** | Not Required with latest Mixinbooter. | :no_entry_sign: Remove |
| **MixinBootstrap** | Not Required with latest MixinBooter. | :no_entry_sign: Remove |
| **Mixin 0.7-0.8 Compatibility (MixinCompat)** | Not Required with latest MixinBooter. | :no_entry_sign: Remove |

- **[Universal Tweaks](https://www.curseforge.com/minecraft/mc-mods/universal-tweaks)** : A community project to consolidate various bugfixes and tweaks into a single solution for Minecraft 1.12.2.
- **[Stellar Core](https://www.curseforge.com/minecraft/mc-mods/stellarcore)** : Provides extensive bug fixes, performance improvements, and additional features across a wide range of mods.
- **[Gnetum](https://www.curseforge.com/minecraft/mc-mods/gnetum)** : Improves performance by distributing HUD updates over multiple frames.
- **[Fixeroo](https://www.curseforge.com/minecraft/mc-mods/xp-orb-clump)** : Bundles bugfixes and Xp orbs optimisations.
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american english has this as optimizations (s -> z) - prefer that over british english.
i believe it would be XP, not Xp, and with optimizations being plural it needs to be orb singular instead of orbs plural.

Suggested change
- **[Fixeroo](https://www.curseforge.com/minecraft/mc-mods/xp-orb-clump)** : Bundles bugfixes and Xp orbs optimisations.
- **[Fixeroo](https://www.curseforge.com/minecraft/mc-mods/xp-orb-clump)** : Bundles bugfixes and XP orb optimizations.

- **[VintageFix](https://www.curseforge.com/minecraft/mc-mods/vintagefix)** : Load time and RAM use improvements for Minecraft 1.12.2.
- **[Universal Tweaks](https://www.curseforge.com/minecraft/mc-mods/universal-tweaks)** : A community project to consolidate various bugfixes and tweaks into a single solution for Minecraft 1.12.2.
- **[Stellar Core](https://www.curseforge.com/minecraft/mc-mods/stellarcore)** : Provides extensive bug fixes, performance improvements, and additional features across a wide range of mods.
- **[Gnetum](https://www.curseforge.com/minecraft/mc-mods/gnetum)** : Improves performance by distributing HUD updates over multiple frames.
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perhaps note that this may have some bugs still?

| **VoxelMap** | Has a good amount of bugs. | :white_check_mark: Add **[VoxelMap Fixes](https://www.curseforge.com/minecraft/mc-mods/voxelmap-fixes)** |
| **Witchery: Resurrected** | Base mod is not usable. | :white_check_mark: Add **[Witchery: Companion](https://www.curseforge.com/minecraft/mc-mods/witchery-companion)** |

## Cleanroom Launcher Exclusive Mods
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this uses "Cleanroom Launcher", elsewhere in this file it is "Cleanroom Loader" - should use the latter here too

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