FTB Unstable

The most up to date and hot off the press mods in all of Modern Minecraft for Unstable 1.21!
Unstable Splash banner

Unstable Splash banner

affiliate banner image

Description

Introducing Unstable 1.21!

Welcome to Unstable 1.21, where the latest Minecraft version meets an even more sophisticated array of ported mods. We are proud to present the NeoForge version, offering you the chance to explore Minecraft's newest features.

Following the success of Unstable 1.20 and Earlier, Unstable 1.21 continues to serve as a cutting-edge testing ground, pushing the boundaries of Minecraft’s latest iteration. This pack invites you to dive deep into the latest features, mods, and updates that Minecraft has to offer, providing a unique and dynamic gameplay experience for those who seek more than just the ordinary.

MC 1.21 has faced challenges with versioning and many mods still actively porting to NeoForge, but we persevered and delivered a pack that embraces the bleeding edge of development. Now, with FTB Unstable 1.21, we're elevating that experience even further. This pack allows us to experiment with and refine new mods while inviting you to join us in uncovering hidden gems and addressing any issues that arise.

Prepare yourself for an adventurous exploration of Minecraft's latest version. Unstable 1.21 serves as a sandbox for delving into the intricacies of the game’s updated features. Unleash your curiosity and witness firsthand how these elements interact and harmonize with the exceptional mods available. Let the unpredictable gameplay take you on a captivating journey where the unknown becomes a source of exhilaration.

While support for FTB Unstable 1.21 may be limited due to its dynamic nature, you’re never alone in this journey. Assistance is always available on our Discord.

Join us on this exciting adventure, where you can experiment with the latest Minecraft features and contribute to the ongoing bug-fixing process. FTB Unstable 1.21 fosters collaboration and camaraderie, offering a platform for enthusiasts like you to shape the future of Minecraft through your valuable experiences.

  • Tons of custom worldgen, new structures to explore and wild expanses thanks to William Wyther's Overhauled Overworld along with Tectonic as well as a handful of well polished terrain and structure expansion mods. Along with lootr, you and your friends will be able to explore and loot for days!
  • Expand your technological innovations with Modern Industrialization and Mekanism.
  • Extract and Build with Xycraft.
  • Get Magical with Ars Nouveau, Theurgy, and Occultism.

So, embrace the ever-evolving frontiers of Unstable 1.21 and unlock the endless possibilities that await. Immerse yourself in a world of discovery, where challenges are met head-on, and innovation thrives!

Support


Keep up to date

The FTB Unstable Team

profile avatar
Owner
  • 1.7K
    Followers
  • 140
    Projects
  • 1.7B
    Downloads

More from FTBView all

  • FTB Ultimine (Fabric) project image

    FTB Ultimine (Fabric)

    • 7.3M
    • Mods

    Harvest multiple blocks at once

    • 7.3M
    • May 27, 2026
    • Mods
    • +1
  • FTB Ultimine (NeoForge) project image

    FTB Ultimine (NeoForge)

    • 104.3M
    • Mods

    Harvest multiple blocks at once

    • 104.3M
    • May 27, 2026
    • Mods
    • +1
  • FTB Evolution project image

    FTB Evolution

    • 337.6K
    • Modpacks

    FTB Evolution re-imagines modded MC with a vast collection of advanced tech, intricate magic, and limitless exploration. Whether you're into building high-tech machinery or wielding powerful spells.

    • 337.6K
    • May 27, 2026
    • Modpacks
  • FTB Presents: Direwolf20 - Season 14 project image

    FTB Presents: Direwolf20 - Season 14

    • 183.3K
    • Modpacks

    Join Direwolf20 for an immersive Minecraft journey set in the minecraft 1.21 mod ecosystem. Brought to you by an FTB and Direwolf20 collaboration!

    • 183.3K
    • May 27, 2026
    • Modpacks
    • +2
  • FTB Ultimine (Fabric) project image

    FTB Ultimine (Fabric)

    • 7.3M
    • Mods

    Harvest multiple blocks at once

    • 7.3M
    • May 27, 2026
    • Mods
    • +1
  • FTB Ultimine (NeoForge) project image

    FTB Ultimine (NeoForge)

    • 104.3M
    • Mods

    Harvest multiple blocks at once

    • 104.3M
    • May 27, 2026
    • Mods
    • +1
  • FTB Evolution project image

    FTB Evolution

    • 337.6K
    • Modpacks

    FTB Evolution re-imagines modded MC with a vast collection of advanced tech, intricate magic, and limitless exploration. Whether you're into building high-tech machinery or wielding powerful spells.

    • 337.6K
    • May 27, 2026
    • Modpacks
  • FTB Presents: Direwolf20 - Season 14 project image

    FTB Presents: Direwolf20 - Season 14

    • 183.3K
    • Modpacks

    Join Direwolf20 for an immersive Minecraft journey set in the minecraft 1.21 mod ecosystem. Brought to you by an FTB and Direwolf20 collaboration!

    • 183.3K
    • May 27, 2026
    • Modpacks
    • +2