modpack
I can't believe it's not Optifine!Minecraft modpack
Modpack designed to be very close to the Optifine experience.
- Latest version
- I can't believe it's not Optifine! 1.21.4.1
- Minecraft
- no version declared
- Java
- follows the game
- Loaders
- none declared
- Licence
- not stated
- Downloads
- 2.2k
- Updated
- 16 mo ago
- Available on
- CurseForge
Our hostingHost I can't believe it's not Optifine! servers
One click and I can't believe it's not Optifine! is installed with the right loader, on hardware built for it.
- One click modpack install
- Dependencies handled
- Tuned startup flags
- NVMe SSD
Download
From I can't believe it's not Optifine!’s own host. Nothing is re-hosted here.
I can't believe it's not Optifine! 1.21.4.1.zip · 4.7 MB · for 1.21.4
4320cccb928f…Older versions1Hide older versions
- I can't believe it's not Optifine! 1.21.5.127 May 20251.21.54.7 MB20 downloads
466b27ba2988…Get
Frequently asked
How do I install I can't believe it's not Optifine!?
Use a launcher that imports packs, such as Prism Launcher, the Modrinth App or the CurseForge app, and open the pack file with it. The launcher installs the right loader and mods for you; installing a pack's mods by hand is the error-prone way.
Where do I download I can't believe it's not Optifine! safely?
Start with the author's page on CurseForge, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.
Which Minecraft versions does I can't believe it's not Optifine! 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 Minecraft.
Is this information wrong or missing something? .