How to install FO
Here are the instructions to install Fabulously Optimized to various launchers.
Can't use Minecraft 1.17 and higher due to hardware limits? Follow this tutorial and then retry.
Supported
Select Minecraft from the grid or sidebar
Search "Fabulously Optimized"
Click
Install
Optional: Select the version you want by instead clicking the row →
Versions
→⤓
.
To run the modpack, hover on the modpack icon and click
Play
Once the Minecraft Launcher has opened, click
Play
again
Or directly from the website:
Go to the listing page on CurseForge
Click
Install
and accept the prompt in your browserOptional: Select the version you want by instead clicking
Files
→ the version you want →Install
.
The app should open and download should start
To run the modpack, hover on the modpack icon and click
Play
Once the Minecraft Launcher has opened, click
Play
again
App version 0.6.2 or higher required.
Under "Popular packs" section, hover on "Fabulously Optimized"
Click
⤓ Install
Optional: Select the version you want by instead clicking the tile →
Versions
→⤓
on the version you want.
The modpack will now install.
Once installed, hover on the created instance under "Jump back in"
Click ▶️ button to play.
You need Java 21 to play the game.
Click
Add Instance
Select
Modrinth
tab from the leftSelect "Fabulously Optimized"
Click
OK
Optional: Select the version you want by selecting it on the dropdown before you click
OK
.
The modpack will now install.
Once installed, double-click the icon to play.
Steam Deck + Prism Launcher
With Steam Deck turned on, hold down
⏻
(power) and tapSwitch to Desktop
.From the taskbar, select 👜 "Discover".
Tap the searchbar on the top left corner, then press ❎ to open the on-screen keyboard.
Search for "Prism Launcher" and tap
Install
on the first result.Launch it and go through its initial setup process, then close it.
Open Steam app, select
Games
→Add a Non-Steam Game to My Library...
→ select Prism Launcher →ADD SELECTED PROGRAMS
.Close Steam and launch
Return to Gaming Mode
.Launch Prism Launcher from your game library.
Tap
Add Instance
Select
Modrinth
tab from the leftSelect "Fabulously Optimized"
Click
OK
Optional: Select the version you want by selecting it on the dropdown before you click
OK
.
The modpack will now install.
Once installed, double-tap the icon and wait.
Tap
Options...
→Controls...
→Controller Settings...
Select a controller, then
Done
→Done
→Done
The game is now set up and you can just launch it from your game library from now on.
Bonus: if you want a better icon in your game library, follow these instructions.
P.S. If you get Deck-specific issues, try asking on r/SteamDeck as FO moderators may not have one.
You need Java 21 to play the game.
Click
Add Instance
Select
Modrinth
tab from the leftSelect "Fabulously Optimized"
Click
OK
Optional: Select the version you want by selecting it on the dropdown before you click
OK
.
The modpack will now install.
Once installed, double-click the icon to play.
MultiMC (auto-update)
You need Java 21 to play the game.
Drag the ZIP-archive to MultiMC window, and hit OK in the window that pops up.
Double-click that version you just created to download and launch the modpack
Minecraft Launcher (vanilla)
For macOS or Linux you need Java to run the Fabric Installer.
Download and install Fabric Loader version 0.16.5
Remember that the installer version doesn't matter, what matters is the loader version that appears when you run the installer.
Open Minecraft Launcher, click
Installations
, then click 📂 on the Fabric installationOpen this site, then click the ⬇️ button
Optional: Select the version you want by selecting it on the dropdown before you click ⬇️.
If you got a prompt for popup windows or multiple downloads, please accept it - technical limitation.
Looking for older versions? Read the "legacy instructions" below.
Open the zip file and copy all folders (why?) to your .minecraft folder
If asked - replace the files.
Recommended: delete
options.txt
to get FO default settingsYour vanilla options like selected resource packs, language, keybinds will be reset but you can reapply them later.
If you choose not to do this, please at least enable bundled resource packs manually.
Launch the installed Fabric profile
If you now see "Fabulously Optimized" in the right bottom corner, you're done!
A simple installer for vanilla launcher is planned!
Not supported
GDLauncher
Due to technical limits and issues, GDLauncher is no longer supported. It is recommended to migrate to Prism Launcher:
Click
Add Instance
Select
Modrinth
tab from the leftSelect "Fabulously Optimized"
Click
OK
The modpack will now install.
Once installed, click the
Folder
button on the left.Open GDLauncher
Right click on your previously used instance →
Open Folder
Copy the important files and folders over:
saves
- your local worldsresourcepacks
- if you added any (it is not needed to copy the modpack defaults)shaders
- if you use anyscreenshots
- screenshots you've taken with F2 or F9servers.dat
- your multiplayer serversoptions.txt
- if you want to keep your vanilla option and all hotkey changes
Launch the instance on Prism and confirm everything is correct
Uninstall GDLauncher
GDLauncher Carbon may be supported in the future.
Pojav Launcher
Pojav Launcher is not yet supported due to drawbacks (long installation process, high energy usage, performance may not be better etc), but is being considered.
ATLauncher
Not to be confused with TLauncher.
ATLauncher is currently not supported simply because the interface is confusing and complex. There have been discussions with its developer to improve this and it may be considered in the future.
PolyMC
PolyMC is compromised and you should uninstall it immediately!
To migrate to Prism Launcher (a safe fork of PolyMC), follow these instructions:
Uninstall PolyMC
Install Prism Launcher
Launch it and pay attention to the prompt you get:
It looks like you used PolyMC before. Do you want to migrate your data to the new location of Prism Launcher?
Click
Yes
and the migration will complete.
It looks like you used PolyMC on Windows before. Do you want to migrate your data to the new location of Prism Launcher?
Click
Yes
and the migration will complete.
Old data from PolyMC was found, but you already have existing data for Prism Launcher. Sadly you will need to migrate yourself. Do you want to be reminded of the pending data migration next time you start Prism Launcher?
Click
No
and follow manual migration instructions below.
To run the modpack, double click the Fabulously Optimized icon
TLauncher
Not to be confused with ATLauncher.
TLauncher is malware, so it will never be supported by Fabulously Optimized. It is highly recommended to reset your entire computer, then come back to this page and follow install instructions for any supported launcher.
Cracked launchers
Any launchers that let you run the game without having purchased it first are not supported.
There is a legitimate way to obtain Minecraft for cheaper: get a giftcode from a trusted reseller. After that, pick any supported launcher from this page and enjoy the game!
Other launchers
Technically you can install it in some other launchers that support CurseForge or Modrinth modpacks or in any launcher by following the vanilla instructions. However, please do not ask for support here if you use an unsupported launcher.
Other modpacks
Some users have experienced interest in using FO with other, content-focused modpacks.
While it is theoretically possible, this is not advised:
mods may have conflicts
neither FO or the other modpack will be able to support you
Instead, we recommend you to use FO with other mods added by you.
If you'd still like to do it on your responsibility, just install the other modpack first and then copy FO's files on top (see vanilla instructions).
Game clients
Fabulously Optimized is not compatible with any "game clients", including "hacked clients" and "PvP clients". Use normal mods instead!
Bedrock Edition
Fabulously Optimized is not compatible with Bedrock Edition. See also: Pojav Launcher
Servers
Any server that works with vanilla Minecraft is supported, no changes are necessay to the server. See server setup for tips.
Quilt
Fabulously Optimized is based on Fabric, not Quilt.
It can be attempted to run it through Quilt, but not all mods and configurations work without changes. If you do attempt it, you're on your own - do not ask for support from the modpack.
The sustainability and popularity of Quilt is being tracked in issue #257.
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