CurseForge · Minecraft modpack

Cataclysm Version (Impossible)

Cataclysm Impossible is a brutal modpack with deadly biomes, relentless mobs and enhanced bosses. Survival demands perfect combat, careful planning and skill, making every victory a hard‑earned triumph in a dark, unforgiving world.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Cataclysm Version (Impossible) release should I use?

Updated 2 months ago

Latest stable file cataclysm version imposible-1.00.zip

Game version 1.21.1

Loader NeoForge 21.1.235

cataclysm version imposible-1.00.zip is a complete pack release for 1.21.1 with NeoForge 21.1.235. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. For this loader, use Java 21. 84 mods in this pack file.

Pack setup

How should I set up Cataclysm Version (Impossible) for players and a server?

Use cataclysm version imposible-1.00.zip as the pack version. Install the pack as its own launcher instance. The creator’s listing does not name a separate server file, so check the release notes before setting up a dedicated server. Do not upload the ordinary client folder blindly.

Client instance Install cataclysm version imposible-1.00.zip

Dedicated server setup Match cataclysm version imposible-1.00.zip

Pack loader NeoForge 21.1.235

Java version Java 21

A pack is a matched client and server setup, not one mod with an install-side label. Keep its release, loader, manifest and overrides together.

Plan the server requirements Read the Minecraft installation guide

Referenced mods 84

Client only 7

Server only 0

Not labelled 77

These numbers come from the pack file you chose. “Not labelled” means we don’t know which side it belongs on—not that it is safe everywhere. The file count is not a RAM estimate.

What are the server requirements for Cataclysm Version (Impossible)?

cataclysm version imposible-1.00.zip. Change the pack release and its contents or setup may change too.

84 mods in this pack file

The selected pack release is cataclysm version imposible-1.00.zip. That file is for Minecraft 1.21.1 with NeoForge 21.1.235. This NeoForge setup needs Java 21. It contains 84 mod projects. The creator’s listing does not name a separate server file. Check their notes before using one, and do not upload an ordinary client folder or rebuild the pack mod by mod. A file count cannot tell us the right RAM, CPU or storage; size the server for the players and world you actually run.

About this project

What kind of pack is Cataclysm Version (Impossible)?

Cataclysm Impossible is an ultra‑hard Minecraft modpack built for players who crave brutal combat and unforgiving survival. The world is filled with deadly biomes, empowered mobs, and bosses with advanced mechanics that punish every mistake. Progression is slow, resources are scarce, and every encounter demands precision, planning, and skill. Only the most determined adventurers will survive long enough to claim legendary gear and conquer the horrors lurking in this dark, relentless world.

Project description from CurseForge.

Mods in cataclysm version imposible-1.00.zip

Open any mod on Modpacks.ch to check its files and dependencies.

accessories-neoforge-1.1.0-beta.53+1.21.1.jar SHA-1 77d75c2e13cfdf56a45cdd29806c1c97c3d250fc · CurseForge file 7583320 · Project link unavailable Side not labelled

AdvancementPlaques-1.21.1-neoforge-1.6.8.jar SHA-1 829d33e71b30e9158d772f5963bb6020f6026d78 · CurseForge file 5905995 · Project link unavailable Side not labelled

anvilcore-10.1 Release-neoforge-1.21.1.jar SHA-1 d807fa23228c5260aa85413c4eab03a577cdd255 · CurseForge file 7771419 · Project link unavailable Side not labelled

appleskin-neoforge-mc1.21-3.0.9.jar SHA-1 81cf0e668f991f83ac8820c386fbd6c9c3602246 · CurseForge file 7854442 · Project link unavailable Side not labelled

appliedenergistics2-19.2.17.jar SHA-1 49c18d6a4af487957d7e5a6ad5dcbf71090b8e14 · CurseForge file 7027323 · Project link unavailable Side not labelled

architectury-13.0.8-neoforge.jar SHA-1 6ca11d3cc136bf69bb8f4d56982481eb85b5100b · CurseForge file 5786327 · Project link unavailable Side not labelled

artifacts-neoforge-13.2.1.jar SHA-1 3fe4d52cc0b11d91c75005030e83e3f675e62383 · CurseForge file 7875426 · Project link unavailable Side not labelled

balm-neoforge-1.21.1-21.0.62.jar SHA-1 b5d32c9f7529ed74ac90b29513fffcbc2f337a39 · CurseForge file 8404826 · Project link unavailable Side not labelled

BiomesOPlenty-neoforge-1.21.1-21.1.0.14.jar SHA-1 6a12e1a249d074fb18f07d1f141b80ca2885e2be · CurseForge file 8288121 · Project link unavailable Side not labelled

bookshelf-neoforge-1.21.1-21.1.81.jar SHA-1 efc4cda6da4dd879f24d057ed0a6413764c9ba40 · CurseForge file 7606240 · Project link unavailable Side not labelled

born_in_chaos_[Neoforge]_1.21.1_1.7.6.jar SHA-1 73704f38ac368c03716f9cc8f537470d3b352fa2 · CurseForge file 8268280 · Project link unavailable Side not labelled

carryon-neoforge-1.21.1-2.2.5.8.jar SHA-1 198182d51b788ce262b922537edeeddf27c5353d · CurseForge file 8383188 · Project link unavailable Side not labelled

caveschaos-1.2.0-neoforge-1.21.1.jar SHA-1 e8b130da95ba85432f5cc8b02645c62a1def9dbd · CurseForge file 8323425 · Project link unavailable Side not labelled

citadel-2.7.0-1.21.1.jar SHA-1 01b18dfa37528aebd63b49874c9ac7795a4fc084 · CurseForge file 7476597 · Project link unavailable Side not labelled

Controlling-neoforge-1.21.1-19.0.5.jar SHA-1 8a34424fc1428778be2fdbfa4da67b21b70bcbfe · CurseForge file 6368976 · Project link unavailable Client only

Corgilib-NeoForge-1.21.1-5.0.0.9.jar SHA-1 6699f876f9e10f936910055f7fe1a283d8bb9e0f · CurseForge file 7773534 · Project link unavailable Side not labelled

coroutil-neoforge-1.21.0-1.3.9.jar SHA-1 0f5a6309ce8394721b97740e6f3e45665f13b8de · CurseForge file 7796187 · Project link unavailable Side not labelled

CrashAssistant-neoforge-1.20.6-1.21.4-1.11.10.jar SHA-1 2787616596ee00b1acca5b543d38525e7afbbb3e · CurseForge file 8262200 · Project link unavailable Side not labelled

create_connected-1.3.2-mc1.21.1.jar SHA-1 920de05b13c32fe1417d0aec0615057aa480cc8d · CurseForge file 8299240 · Project link unavailable Side not labelled

create_creative-1.0.5.3-neoforge-1.21.1.jar SHA-1 ad116719245abdfe58f950a4752b70c548aa5434 · CurseForge file 8191598 · Project link unavailable Side not labelled

create_for_twinks-1.0.3-neoforge-1.21.1.jar SHA-1 b45482863cc3d7acf1c007c71849b3dbbad9b1d0 · CurseForge file 8202240 · Project link unavailable Side not labelled

create_structures_arise-176.49.48 NeoForge 1.21.1.jar SHA-1 48f22eb339299d832f66d39fecee2ca26880b574 · CurseForge file 8138502 · Project link unavailable Side not labelled

create-1.21.1-6.0.10.jar SHA-1 0e97e49837bed766e6f28a4c95b04885d6acc353 · CurseForge file 7963363 · Project link unavailable Side not labelled

create-aeronautics-bundled-1.21.1-1.3.0.jar SHA-1 a2b08963ebc9f331f52c626aebcd65013e100d69 · CurseForge file 8240058 · Project link unavailable Side not labelled

create-enchantment-industry-2.4.2.jar SHA-1 4ad5c181c805a548e15892500b07c0c0f88f0734 · CurseForge file 8241347 · Project link unavailable Side not labelled

createaddition-1.6.0.jar SHA-1 87b539d41ed238e98b26c607c0c81a973323147e · CurseForge file 8188476 · Project link unavailable Side not labelled

CreateDragonsPlus-1.11.2b.jar SHA-1 c0427a7f657f583694e485186621bdeda16ca8dd · CurseForge file 8219463 · Project link unavailable Side not labelled

curios-neoforge-9.5.1+1.21.1.jar SHA-1 418fcd42e3a7844c9bdc71c9b6401fdb3894e0c4 · CurseForge file 6529130 · Project link unavailable Side not labelled

deeperdarker-neoforge-1.21.1-1.4.1.jar SHA-1 b6094adde68bd4b909bc75c64901e1f3fb99ad8f · CurseForge file 8201775 · Project link unavailable Side not labelled

dummmmmmy-1.21-2.0.12-neoforge.jar SHA-1 0e69c2a8e4e51df42e45b2d6deb3a855bdf8dce6 · CurseForge file 7943676 · Project link unavailable Side not labelled

enchdesc-neoforge-1.21.1-21.1.10.jar SHA-1 9a06a20881c5feb730aa249666cac2871ca99fda · CurseForge file 8240827 · Project link unavailable Client only

entity_model_features-3.2.4-1.21-neoforge.jar SHA-1 fcc0d7cfee5ace4dba159225edd151d90dd924b9 · CurseForge file 8063559 · Project link unavailable Client only

entity_texture_features_1.21-neoforge-7.1.jar SHA-1 56de40b237ff44dbf1bb68844e0f118607902684 · CurseForge file 7930620 · Project link unavailable Client only

ExplorersCompass-1.21.1-3.4.0-neoforge.jar SHA-1 9f62af344988a6e2d855b113e61cf0e1611c7e0f · CurseForge file 7892943 · Project link unavailable Side not labelled

FarmersDelight-1.21.1-1.3.2.jar SHA-1 bf7e7dede99e832de20e191b1f6c11f7a9b9a622 · CurseForge file 8083481 · Project link unavailable Side not labelled

framework-neoforge-1.21.1-0.13.11.jar SHA-1 e46eb138fbb13a12f37154fb4ec407d64b326475 · CurseForge file 7530361 · Project link unavailable Side not labelled

geckolib-neoforge-1.21.1-4.9.2.jar SHA-1 14c64013cadee7d28f3685f94350f9a4d2ec6d86 · CurseForge file 8350073 · Project link unavailable Side not labelled

GlitchCore-neoforge-1.21.1-2.1.0.2.jar SHA-1 a31c3f36330f19aa538add3d727782a62c9c30ad · CurseForge file 8109792 · Project link unavailable Side not labelled

goblintraders-neoforge-1.21.1-1.11.2.jar SHA-1 4507faefb977321b598daa3fb35d7e1a9a03eb80 · CurseForge file 6427515 · Project link unavailable Side not labelled

guardvillagers-2.4.10-1.21.1.jar SHA-1 3367fcfe8b72a2358cb4be83ac0b7f0470831a92 · CurseForge file 8230345 · Project link unavailable Side not labelled

guideme-21.1.16.jar SHA-1 6c89cb18fd426a5dd851dd30ec72f02cb8bbcce7 · CurseForge file 8129788 · Project link unavailable Side not labelled

Iceberg-1.21.1-neoforge-1.3.2.jar SHA-1 f6014d198be9503573cd9cb41cc789d282768ad8 · CurseForge file 6423863 · Project link unavailable Side not labelled

immersive_aircraft-1.4.6+1.21.1-neoforge.jar SHA-1 f9bc465d0b64735ad3c3f1a5beadd796405825f1 · CurseForge file 8158291 · Project link unavailable Side not labelled

ironchest-1.21-neoforge-16.0.7.jar SHA-1 7064b4ea349f37d95a6448c3179dc0a2cad0c162 · CurseForge file 5491156 · Project link unavailable Side not labelled

irons_lib-1.21.1-2.1.0.jar SHA-1 70fba64d12b6ff9553580e52101d989c89297797 · CurseForge file 8364894 · Project link unavailable Side not labelled

irons_spellbooks-1.21.1-3.16.2.jar SHA-1 09907e3b4bfdabd7f1f44bfd25aa6432183f39bb · CurseForge file 8364935 · Project link unavailable Side not labelled

ironssablecompat-1.0.4.jar SHA-1 8cfe21160b4ee0ddd70659620181bf0313f8470b · CurseForge file 8284717 · Project link unavailable Side not labelled

jei-1.21.1-neoforge-19.27.0.336.jar SHA-1 d02c849e4e321e7b056a48e0242ec641560c2ab8 · CurseForge file 7391682 · Project link unavailable Side not labelled

Jeremis_Tensura-0.6.30.jar SHA-1 866eca3f6f429cc7827515da50dd1a197474c797 · CurseForge file 8396317 · Project link unavailable Side not labelled

jeremyseqsdamageindicators-2.2.1-1.21.1-neo.jar SHA-1 566b83eecc157e8ae0a6eb2b10212a9f49a919f6 · CurseForge file 6733254 · Project link unavailable Client only

JustEnoughResources-NeoForge-1.21.1-1.6.0.17.jar SHA-1 e739d69b2de31ca8c0cb4691ab08e823f153bc44 · CurseForge file 6506298 · Project link unavailable Side not labelled

justzoom_neoforge_2.1.0_MC_1.21.1.jar SHA-1 328da50972fa693b8e6f337d4a9560d4a6170ac3 · CurseForge file 6290230 · Project link unavailable Side not labelled

konkrete_neoforge_1.9.9_MC_1.21.jar SHA-1 97771eb287d5ac7fe667d1df9493d5e54c8ca1fa · CurseForge file 5453385 · Project link unavailable Side not labelled

L_Ender's Cataclysm 1.21.1-3.32.jar SHA-1 f16c6bf69232ebdf85cc861450a8dd5def310e5b · CurseForge file 8364209 · Project link unavailable Side not labelled

lionfishapi-3.1.jar SHA-1 353ca00ed118eb67cf11085abbbd699884722326 · CurseForge file 8345326 · Project link unavailable Side not labelled

lootr-neoforge-1.21.1-1.11.37.121.jar SHA-1 88c574c084ea00ddbda6a8c3ea29f1ec700e5fe2 · CurseForge file 8333694 · Project link unavailable Side not labelled

manascore-neoforge-4.0.0.2.jar SHA-1 f11a0062d7829e26a8705183762a5e0f2d022dd3 · CurseForge file 8022425 · Project link unavailable Side not labelled

moonlight-neoforge-1.21.1-3.0.22.jar SHA-1 98f1a1ca3e51d73cae5187a21dec4d0e153c4f01 · CurseForge file 8343403 · Project link unavailable Side not labelled

MouseTweaks-neoforge-mc1.21-2.26.1.jar SHA-1 6dae57f4f50f7808d2ed9a18f6cd1c0d4640c6bc · CurseForge file 5637846 · Project link unavailable Client only

mowzies_cataclysm-1.2.2.jar SHA-1 0dff3e849155ca343d1a500f5b9ca2b54ffa692d · CurseForge file 8196282 · Project link unavailable Side not labelled

mowziesmobs-1.21.1-1.8.2.jar SHA-1 d64475cd77444b056ece6472c79d40293dc63c6c · CurseForge file 7760267 · Project link unavailable Side not labelled

NaturesCompass-1.21.1-3.4.0-neoforge.jar SHA-1 e19721873bebc4dbc1674bb101af39d0ea406b95 · CurseForge file 7892954 · Project link unavailable Side not labelled

notenoughanimations-neoforge-1.12.4-mc1.21.1.jar SHA-1 b509863deaa27890f8db600f612966a07490a6cd · CurseForge file 8274908 · Project link unavailable Client only

OctoLib-NEOFORGE-0.6.2+1.21.jar SHA-1 f4f66d677b104c6af7f5c0f7e3c08d8e4370ecad · CurseForge file 8040848 · Project link unavailable Side not labelled

Oh-The-Biomes-Weve-Gone-NeoForge-2.6.0.jar SHA-1 4611dc5bb4240333178e14e81f76168f78167448 · CurseForge file 8245253 · Project link unavailable Side not labelled

Oh-The-Trees-Youll-Grow-neoforge-1.21.1-5.3.2.jar SHA-1 1867792e4e3d9fc6bb7acabb31cbec7a3d49ecad · CurseForge file 8096180 · Project link unavailable Side not labelled

owo-lib-neoforge-0.12.15.5-beta.1+1.21.jar SHA-1 48dda11a6710591cf162bdbedf982ea21dd1f2ed · CurseForge file 6785734 · Project link unavailable Side not labelled

player-animation-lib-forge-2.0.4+1.21.1.jar SHA-1 05be8ddcc78532b9a5520c718edc6c971cd0057c · CurseForge file 7389814 · Project link unavailable Side not labelled

prickle-neoforge-1.21.1-21.1.11.jar SHA-1 5174059ecf97340a0de5ef211b938de26c4eaa36 · CurseForge file 6961457 · Project link unavailable Side not labelled

relics-1.21.1-0.10.7.8.jar SHA-1 7f7fd59273ac5ef6511a811518bc9af01705a528 · CurseForge file 7586568 · Project link unavailable Side not labelled

sable-neoforge-1.21.1-2.0.3.jar SHA-1 f3ba9a497122ba29d9e94ebe6f9a3a3aaa5fa756 · CurseForge file 8263584 · Project link unavailable Side not labelled

Searchables-neoforge-1.21.1-1.0.2.jar SHA-1 5b8a0b43a474c066371b2e16f9bfb88622552a74 · CurseForge file 5831692 · Project link unavailable Side not labelled

SmartBrainLib-neoforge-1.21.1-1.16.11.jar SHA-1 0310135a01eeceefbc7f1ab017498a65f3ad6836 · CurseForge file 7055149 · Project link unavailable Side not labelled

sophisticatedbackpacks-1.21.1-3.25.69.1979.jar SHA-1 2120e57403c3a78e598f72e912d57e91339ad713 · CurseForge file 8398799 · Project link unavailable Side not labelled

sophisticatedcore-1.21.1-1.4.70.2131.jar SHA-1 69ba73fd9d2fa071ecb5e05f71edfb63e1e39de9 · CurseForge file 8398762 · Project link unavailable Side not labelled

supplementaries-neoforge-1.21.1-3.7.7.jar SHA-1 94e2f1e01a41dbf1cea6baf7517858cae223af5d · CurseForge file 8355309 · Project link unavailable Side not labelled

tensura-neoforge-2.0.1.1.jar SHA-1 aba444ddc65593bd86a6b618749063efad20add0 · CurseForge file 8375709 · Project link unavailable Side not labelled

TerraBlender-neoforge-1.21.1-4.1.0.8.jar SHA-1 2016eed89eac0eb0510d2190c3b0b80bf4346191 · CurseForge file 6054947 · Project link unavailable Side not labelled

trashslot-neoforge-1.21.1-21.1.11.jar SHA-1 7343e4b563feb79122c8373a0d5416182ca436a8 · CurseForge file 8163135 · Project link unavailable Side not labelled

twilightforest-1.21.1-4.8.3345-universal.jar SHA-1 9cfd4154928433e2f1f6cfc3deb48c284debb580 · CurseForge file 7797302 · Project link unavailable Side not labelled

watut-neoforge-1.21.0-1.2.7.jar SHA-1 07cfb8fb1269f1eae1056492912e3544be979f62 · CurseForge file 6418577 · Project link unavailable Side not labelled

waystones-neoforge-1.21.1-21.1.36.jar SHA-1 ee48dd56992712e66e9ba75f2ed23c2e8b8c53eb · CurseForge file 8404393 · Project link unavailable Side not labelled

xaerominimap-neoforge-1.21.1-26.2.1.jar SHA-1 7c8bb68ba18edc252e50102d45c0ea7556ac2626 · CurseForge file 8396507 · Project link unavailable Side not labelled

xaeroworldmap-neoforge-1.21.1-1.42.0.jar SHA-1 43209e577bfcfbbbff1944ec7dc04015e373e9f6 · CurseForge file 8392576 · Project link unavailable Side not labelled

Pick your setup