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FTB Quests OptimizerMinecraft mod for 1.21.1

Mod to improve quest performance for servers

newest supported release 1.21.1Utility QolServer UtilityMc AddonsPerformance
Latest version
FTBQuestsOptimizer-forge-2.1.0-1.20.1
Minecraft
1.16.5 to 1.21.1
Java
Java 21+
Loaders
Forge, Fabric, NeoForge
Licence
not stated
Downloads
8.8M
Updated
7 mo ago
Available on
CurseForge

Minecraft versions

Every version FTB Quests Optimizer declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, Fabric, NeoForge21+declared8 Aug 2024
1.20.1Forge, Fabric, NeoForge17+declared12 Jun 2023
1.19.2Fabric, NeoForge, Forge17+declared5 Aug 2022
1.18.2NeoForge, Forge, Fabric17+declared28 Feb 2022
1.16.5Forge, NeoForge, Fabric8+declared14 Jan 2021

Download

From FTB Quests Optimizer’s own host. Nothing is re-hosted here.

Browse 40 indexed releases

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • NeoForge

    FTBQuestsOptimizer-neoforge-3.2.0-1.21.1 · 4 Feb 2026 · FTBQuestsOptimizer-neoforge-3.2.0-1.21.1.jar

    Get NeoForge

  • Fabric

    FTBQuestsOptimizer-fabric-3.2.0-1.21.1 · 4 Feb 2026 · FTBQuestsOptimizer-fabric-3.2.0-1.21.1.jar

    Get Fabric

Most recently published release

FTBQuestsOptimizer-forge-2.1.0-1.20.1release13 Apr 2026

FTBQuestsOptimizer-forge-2.1.0-1.20.1.jar · 13 KB · for 1.20.1 · Forge

Download this release
112f99e8b07e…
Older versions24
  • FTBQuestsOptimizer-fabric-2.1.0-1.20.113 Apr 20261.20.112 KBe42c21ae0292…Get
  • FTBQuestsOptimizer-neoforge-3.2.0-1.21.14 Feb 20261.21.118 KB93 downloads28e4926c62f9…Get
  • FTBQuestsOptimizer-fabric-3.2.0-1.21.14 Feb 20261.21.119 KB8bc49e7a14bc…Get
  • FTBQuestsOptimizer-neoforge-3.1.0-1.21.117 Aug 20251.21.118 KBc3a4c14f67b3…Get
  • FTBQuestsOptimizer-fabric-3.1.0-1.21.117 Aug 20251.21.118 KB9eb606a90029…Get
  • FTBQuestsOptimizer-neoforge-3.0.0-1.21.115 Jan 20251.21.111 KB44.1k downloads785d2690eb37…Get
  • FTBQuestsOptimizer-fabric-3.0.0-1.21.115 Jan 20251.21.112 KB5.2k downloadsa5c7e72a9bf9…Get
  • FTBQuestsOptimizer-forge-2.0.5-1.20.113 Jan 20251.20.114 KB1.3M downloads18458645cbc3…Get
  • FTBQuestsOptimizer-fabric-2.0.5-1.20.113 Jan 20251.20.113 KB12.9k downloads53e013736a9a…Get
  • FTBQuestsOptimizer-forge-2.0.4-1.20.14 Aug 20241.20.114 KB288.8k downloadsb249cf13a171…Get
  • FTBQuestsOptimizer-fabric-2.0.4-1.20.14 Aug 20241.20.113 KB14.7k downloadsd09441909496…Get
  • FTBQuestsOptimizer-forge-2.0.3-1.20.119 Jun 20241.20.114 KB281.4k downloads308acda7d780…Get
  • FTBQuestsOptimizer-fabric-2.0.3-1.20.119 Jun 20241.20.113 KB9.4k downloadsebb3055d7d24…Get
  • FTBQuestsOptimizer-forge-2.0.2-1.20.126 May 20241.20.114 KB75.9k downloads93fbb615f3c0…Get
  • FTBQuestsOptimizer-fabric-2.0.2-1.20.126 May 20241.20.113 KB1.8k downloads4fc3a0c13e9d…Get
  • FTBQuestsOptimizer-forge-2.0.1-1.20.19 May 20241.20.111 KB18.5k downloads30f674a7211c…Get
  • FTBQuestsOptimizer-fabric-2.0.1-1.20.19 May 20241.20.110 KB1.4k downloads5718f335d5c3…Get
  • FTBQuestsOptimizer-forge-2.0.0-1.20.129 Apr 20241.20.111 KB528 downloads8ba5f56eed9b…Get
  • FTBQuestsOptimizer-fabric-2.0.0-1.20.129 Apr 20241.20.110 KB171 downloads2f3e2b2527e7…Get
  • FTBQuestsOptimizer-forge-1.2.3-1.20.129 Apr 20241.20.110 KB51.8k downloads4362a853d9f9…Get
  • FTBQuestsOptimizer-fabric-1.2.3-1.20.129 Apr 20241.20.19 KB370 downloadsdf1b1dcc0026…Get
  • FTBQuestsOptimizer-1.16.5-1.0.011 Apr 20241.16.59 KB7.1k downloads2413640d8d2d…Get
  • FTBQuestsOptimizer-forge-1.2.2-1.20.117 Mar 20241.20.110 KB102.6k downloads469db03b252f…Get
  • FTBQuestsOptimizer-fabric-1.2.2-1.20.117 Mar 20241.20.19 KB2.5k downloads2aa66e0b6fa8…Get

Frequently asked

Does FTB Quests Optimizer work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version FTB Quests Optimizer 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 FTB Quests Optimizer support?

Everything the author has declared, from 1.16.5 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does FTB Quests Optimizer support?

Forge, Fabric, NeoForge. 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 FTB Quests Optimizer?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

How do I install FTB Quests Optimizer?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download FTB Quests Optimizer 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. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Details from CurseForge, where the author last updated it on 13 Apr 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .