
Levviata's Optimization Pack
A Forge 1.12.2 only modpack with pure optimizations and nothing else.
About this Modpack
Levviata's Optimization Pack
NOTE:
When you first run the modpack, your game WILL crash; this is expected, however.
Reboot your game and you will be totally fine.
(issue on GitHub + reason why this unavoidably happens).
To download Vintagium latest release,
please join Cleanroom's Discord server
and check the # 🌟 information channel,
you will see the latest release there.
OPTIFINE IS NOT SUPPORTED
(see more on "Known Issues / Known Incompatibilities" section)
A Forge/Cleanroom (Cleanroom support is planned) modpack
that uses the latest optimization mods for Minecraft 1.12.2 while adding no other gameplay,
QoL, etc. features.
Intended to use in new singleplayer playthroughs as a standalone,
but I will eventually release server-only instances and instructions for integration in existing modpacks.
(there is not enough testing,
but please try it
and open an issue in the tracker
if you have any problem.)
(the modpack name on the web (modrinth, CurseForge, and GitHub) is "Levviata's Optimization Pack" for visibility,
the pack is named "Optimum" internally)
Features
Mods included in the modpack are the following (embedded and external):
- Core:
- Alfheim (lighting engine)
- A lighting engine. Completely reworks and optimizes the lighting engine
- Nothirium + Naughthirium (render engine) -> NOTE: Naughthirium adds compatibility with CensoredASM and Nothirium, it is needed.
- A chunk render engine. Reworks and (hopefully) optimizes chunk rendering
- CensoredASM (optimizes ram, fixes crashes, and optimizes code in general)
- Minecraft bytecode hackery. Optimizes a lot of Minecraft's code with positive results
- Entity Culling (1.12.2-only maintained entity culling)
- A entity culling render system. Hides entities that aren't visible on your screen
- Universal Tweaks (general tweaks/bugfixes)
- Packs a lot of minor changes into one big mod. A LOT of bugfixes and tweaks
- VintageFix (FoamFix replacer)
- Blockstate/model optimizations. Improves memory usage and load times
- StellarCore (low invasiveness and high impact tweaker)
- A high impact but low invasiveness mod that fixes other mods (vanilla too), bug fixes, and improves performance.
- Particle Culling (less particle lag)
- A particle culling render system. Hides particles that aren't visible on your screen
- MixinBooter (core library)
- Mixin 101. Handles code injection and a lot of other nerdy things
- Alfheim (lighting engine)
- Minor Fixes:
- Better Biome Blend (biome color blender optimizer)
- Better-looking biome blending and optimizes the biome blend algorithm
- Clumps (Xp orb clump)
- Clumps experience orbs into one to improve performance (fewer entities = better)
- Better Biome Blend (biome color blender optimizer)
- Utility or Library:
- File director (utility)
- Moves, downloads, and handles files for the modpack
- ConfigAnyTime (library)
- Lets config be edited at any time
- RedCore (library)
- Amazing library for developers
- RenderLib (library)
- A rendering library
- File director (utility)
External Mods / Bundled Mods
This modpack uses File Director to download these mods from CurseForge:
("File Director" is a Minecraft Forge mod
that allows you to download and manage mods in modpacks)
These mods were redistributed/bundled with the modpack for convenience (see "Credits / Copyright Notice" section for more information):
Performance Comparison
TODO: add images for comparison (against vanilla, etc.)
also check how Entity Cull (current) differs from the other Entity Cull (by tr7zw)
Known Issues / Known Incompatibilities
Please see Known Issues
and Incompatibilities.
Other Mods / Useful Resources
Other useful mods that aren't essential and the resources/lists used to make this modpack.
Please see Other Mods and Useful Resources.
Credits / Copyright Notice
Please see Credits and Copyright.
Links
CurseForge: https://www.curseforge.com/minecraft/modpacks/levviatas-optimization-pack
Modrinth: https://modrinth.com/modpack/levviatas-optimization-pack (you are here)
GitHub: https://github.com/Levviata/Levviatas-Optimization-Pack (source)
License
TLDR: Distribution and modification is allowed, but you can't use "Levviata's Optimization Pack" as your own trademark
("Optimum" is NOT trademarked as it is a common English word.)
That is a short summary of what is most important, please read the full license below:
License: https://github.com/Levviata/Levviatas-Optimization-Pack/blob/main/LICENSE.txt
Available Versions
How to Set Up a Levviata's Optimization Pack Server
Order Server
Choose at least 4 GB RAM (6 GB recommended for Levviata's Optimization Pack). Based on player count: per 5 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "Levviata's Optimization Pack" and click "Install". The forge loader and Minecraft 1.12.2 are configured automatically.
Start Server & Play
Start the server – all mods are loaded automatically. Share the server IP with friends and play together!
Frequently Asked Questions
Levviata's Optimization Pack server crashes or won't start – what to do?
Most common causes: insufficient RAM or wrong forge loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 6 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.
How much RAM does a Levviata's Optimization Pack server really need?
Minimum 4 GB, recommended 6 GB for stable performance. per 5 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €8/month).
Can I add custom mods to Levviata's Optimization Pack without conflicts?
Yes, but check compatibility: only use mods for the same loader (forge) and same Minecraft version (1.12.2). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.
Levviata's Optimization Pack server lagging – performance tips
1) Increase RAM to 6 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.
Rent Levviata's Optimization Pack Server
Start your own server with automatic modpack installation.
Details
- License
- BSD 3-Clause "New" or "Revised" License
- Server-side
- Unsupported
- Client-side
- Required
Supported Versions
Start your Levviata's Optimization Pack Server now
From €8.00/month with 6 GB RAM for the best performance.
Configure Server →