modpack
Only Optimized (FABRIC)Minecraft modpack for 1.21.10
Only Optimized is a modpack that has no extra features so is great to create as a template if you want to make something with more features. supports 1.19.4-1.21.10 (1.21.11, 1.19, 1.18, 1.17, 1.16, 1.15, and 1.14 versions coming soon!)
- Latest version
- MC1.19.4
- Minecraft
- 1.19.4 to 1.21.10
- Java
- Java 21+
- Loader
- Fabric
- Licence
- LicenseRef-All-Rights-Reserved
- Downloads
- 984
- Updated
- 11 mo ago
- Available on
- Modrinth
Our hostingHost Only Optimized (FABRIC) servers
One click and Only Optimized (FABRIC) is installed with the right loader, on hardware built for it.
- 1.21.10
- Fabric
- One click modpack install
- Dependencies handled
- Tuned startup flags
- NVMe SSD
Screenshots
Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.
Minecraft versions
Every version Only Optimized (FABRIC) declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 1.21.10 | Fabric | 21+ | declared | 7 Oct 2025 |
| 1.21.9 | Fabric | 21+ | declared | 30 Sept 2025 |
| 1.21.8 | Fabric | 21+ | declared | 17 Jul 2025 |
| 1.21.7 | Fabric | 21+ | declared | 30 Jun 2025 |
| 1.21.6 | Fabric | 21+ | declared | 17 Jun 2025 |
| 1.21.5 | Fabric | 21+ | declared | 25 Mar 2025 |
| 1.21.4 | Fabric | 21+ | declared | 3 Dec 2024 |
| 1.21.3 | Fabric | 21+ | declared | 23 Oct 2024 |
| 1.21.2 | Fabric | 21+ | declared | 22 Oct 2024 |
| 1.21.1 | Fabric | 21+ | declared | 8 Aug 2024 |
| 1.21 | Fabric | 21+ | declared | 13 Jun 2024 |
| 1.20.6 | Fabric | 21+ | declared | 29 Apr 2024 |
| 1.20.5 | Fabric | 21+ | declared | 23 Apr 2024 |
| 1.20.4 | Fabric | 17+ | declared | 7 Dec 2023 |
| 1.20.3 | Fabric | 17+ | declared | 4 Dec 2023 |
| 1.20.2 | Fabric | 17+ | declared | 20 Sept 2023 |
| 1.20.1 | Fabric | 17+ | declared | 12 Jun 2023 |
| 1.20 | Fabric | 17+ | declared | 2 Jun 2023 |
| 1.19.4 | Fabric | 17+ | declared | 14 Mar 2023 |
Download
From Only Optimized (FABRIC)’s own host. Nothing is re-hosted here.
OO 1.19.4 1.0.0.mrpack · 0.0 MB · for 1.19.4
3f5473eb2f3f…Older versions18Hide older versions
- MC1.209 Oct 20251.200.0 MB28 downloads
5505db9fadc5…Get - MC1.20.19 Oct 20251.20.10.0 MB40 downloads
90bea574d9ef…Get - MC1.20.29 Oct 20251.20.20.0 MB23 downloads
3504b7a07ae5…Get - MC1.20.38 Oct 20251.20.30.0 MB22 downloads
1fd7061a21f8…Get - MC1.20.58 Oct 20251.20.50.0 MB19 downloads
4556f3077862…Get - MC1.20.48 Oct 20251.20.40.0 MB22 downloads
76b5e36d4225…Get - MC1.20.68 Oct 20251.20.60.0 MB23 downloads
6937e60f1beb…Get - MC1.218 Oct 20251.210.0 MB29 downloads
4d8f84c9bbe6…Get - MC1.21.18 Oct 20251.21.10.0 MB51 downloads
357f3cddbfc6…Get - MC1.21.28 Oct 20251.21.20.0 MB23 downloads
67241c2e2567…Get - MC1.21.38 Oct 20251.21.30.0 MB19 downloads
ebd2664d2363…Get - MC1.21.48 Oct 20251.21.40.0 MB41 downloads
6ab6e703c148…Get - MC1.21.58 Oct 20251.21.50.0 MB35 downloads
8cebe4cbdec9…Get - MC1.21.68 Oct 20251.21.60.0 MB22 downloads
769b6834062e…Get - MC1.21.108 Oct 20251.21.100.0 MB125 downloads
d283bd87f472…Get - MC1.21.78 Oct 20251.21.70.0 MB24 downloads
89f1136c2107…Get - MC1.21.98 Oct 20251.21.90.0 MB42 downloads
494fa50af56c…Get - MC1.21.88 Oct 20251.21.80.0 MB67 downloads
861ce3785f24…Get
Frequently asked
Does Only Optimized (FABRIC) work on Minecraft 1.21.10?
Yes. 1.21.10 is the newest Minecraft version Only Optimized (FABRIC) declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.
Which Minecraft versions does Only Optimized (FABRIC) support?
Everything the author has declared, from 1.19.4 up to 1.21.10. The full list is in the table above, with the Java runtime each version needs next to it.
Which platform or loader does Only Optimized (FABRIC) support?
Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.
Which Java version do I need for Only Optimized (FABRIC)?
On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the modpack itself, so on an older supported Minecraft the answer is that version's Java, not this one.
What licence is Only Optimized (FABRIC) under?
LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.
How do I install Only Optimized (FABRIC)?
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 Only Optimized (FABRIC) safely?
Start with the author's page on Modrinth, 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.
Works on the same versions
Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.
Is this information wrong or missing something? .