DirtTW's Basement Optimize Pack
ModpackA modpack for smoother play that keeps the familiar vanilla feel.
Mod grades
How grades workModpacks get no grade of their own, so we show the grades of its mods. Of its 56 graded mods, 51 are graded A or B, 3 C and 2 D to F. Its last update came out 13 months ago, for Minecraft 1.21.8. See the mods
Images
About
DirtTW's Basement Optimize Pack is a mostly client-side optimization pack designed to improve Minecraft performance while keeping the familiar vanilla gameplay intact. Sodium provides performance optimization, while ModernFix is included for faster loading and Spark for profiling performance bottlenecks. Iris adds shader support, and the pack also integrates familiar OptiFine-style features without adding gameplay-altering modifications. For multiplayer, WorldHost helps players connect with friends, while e4mc lets them share singleplayer worlds.
Written from Modrinth and CurseForge . How we write it
Content of this pack
The mods of its newest release (Minecraft 1.21.8 · Fabric, 4 Oct 2025). Each check result is for the latest files of that mod, which may not be the version in this pack.
Cloth Config APIMod · 569.3M downloadsAPassed
Mouse TweaksMod · 548.3M downloadsAPassed
Fabric APIMod · 527.1M downloadsAPassed
Entity CullingMod · 425.1M downloadsAPassed
SodiumMod · 412.7M downloadsAPassed
Iris ShadersMod · 337.4M downloadsAPassed
ImmediatelyFastMod · 329.5M downloadsAPassed
[ETF] Entity Texture FeaturesMod · 272.2M downloadsAPassed
YetAnotherConfigLib (YACL)Mod · 266.4M downloadsAPassed
[EMF] Entity Model FeaturesMod · 252.9M downloadsAPassed
Mod MenuMod · 244.6M downloadsAPassed
FerriteCoreMod · 243.7M downloadsAPassed
LithiumMod · 242.4M downloadsAPassed
sparkMod · 242M downloadsAPassed
Fabric Language KotlinMod · 218.7M downloadsAPassed
Sodium ExtraMod · 181.1M downloadsAPassed
Chat HeadsMod · 172.4M downloadsAPassed
Reese's Sodium OptionsMod · 166.6M downloadsAPassed
Forge Config API PortMod · 155.4M downloadsAPassed
ContinuityMod · 145.1M downloadsAPassed
Fzzy ConfigMod · 139.4M downloadsAPassed
BadOptimizationsMod · 128.4M downloadsAPassed
Dynamic FPSMod · 126.3M downloadsAPassed
Zoomify (Zoom)Mod · 116.3M downloadsAPassed
BetterF3Mod · 116M downloadsAPassedChanges since the previous release
Compared with the release of 13 Sep 2025 for the same platform, Minecraft version and loader. Same mods in both. We do not compare the versions of the mods yet.
- Share graded A or B
- unchanged
Details
- Creator
- dirtTW
- License
- MIT License
- Downloads
- 18K
- Created
- 7 Jun 2023
- Official pages
- Modrinth , CurseForge
- Links
- Source code , Issues , Wiki , Discord
Security
No harmful code found in its projects
We checked all 56 projects and the files in the pack itself, without running them.
Why we show this: a modpack installs the files of its mods, and each mod runs on your computer like any program. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: a modpack has no grade of its own, and each mod's result counts in that mod's grade.
How we checked
- Its projects56 projects
- Files in the pack itself21 settings files, 2 mod jars.
- Author on ModrinthThe disclosure form on Modrinth, where the author declares that the project reads or edits things on your system outside the game. Since 13 Aug 2026, Modrinth's rules require it when this applies.Nothing declared about your system outside the game.
Privacy
5 mods send something about you
We read the code of all 54 of its mods, without running it.
Why we show this: a modpack runs the code of its mods, and a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.
How we checked
- Go online onlyTheir code contacts a web address, for example to check for updates. We found nothing it sends about you.4 mods
- Send nothingTheir code contacts no web address.45 mods
AI
AI used in 5 of the 53 mods we checked
We found an AI tool in them, or their authors declared AI content.
1 mod is not checked yet.
No sign so far that AI was used to make the pack itself
We looked for AI tools in its texts and found none.
We have not read its files, images and code history yet.
Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.
How we checked
- Author on ModrinthThe disclosure form on Modrinth. Since 13 Aug 2026, Modrinth's rules require it when a substantial part of the code is AI output, when an asset is mainly AI output, or when the project or its page relies on generative AI.No AI content declared.
- Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.Not read yet
- Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.Nothing found19 of 40 changelogs read
- Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.Not read yet
- Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.Not read yet
Compatibility
See all 175 filesPoint at or tap a version to see its loaders.