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One Block Hardcore project artwork

Modrinth · Minecraft modpack

One Block Hardcore

A hardcore One Block modpack is a challenging survival experience where players start on a single block that regenerates endlessly. With permadeath enabled, every mistake matters as you progress through phases, unlock new resources, and face increasingly.

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

Quick answer

Which One Block Hardcore release should I use?

Updated 9 months ago
Latest stable file One Block Hardcore 1.0.0
Game version 1.21.11
Loader Fabric 0.18.4

One Block Hardcore 1.0.0 is a complete pack release for 1.21.11 with Fabric 0.18.4. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 21 mods in this pack file.

Pack setup

How should I set up One Block Hardcore for players and a server?

Use One Block Hardcore 1.0.0 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 One Block Hardcore 1.0.0
Dedicated server setup Match One Block Hardcore 1.0.0
Pack loader Fabric 0.18.4

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.

Referenced mods 21
Client only 2
Server only 1
Not labelled 18

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 One Block Hardcore?

One Block Hardcore 1.0.0. Change the pack release and its contents or setup may change too.

21 mods in this pack file

The selected pack release is One Block Hardcore 1.0.0. That file is for Minecraft 1.21.11 with Fabric 0.18.4. It contains 21 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 One Block Hardcore?

A hardcore One Block modpack is a challenging survival experience where players start on a single block that regenerates endlessly. With permadeath enabled, every mistake matters as you progress through phases, unlock new resources, and face increasingly dangerous mobs and bosses. Skill, strategy, and patience are essential to survive and thrive.

Project description from Modrinth.

Mods in One Block Hardcore 1.0.0

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

a_breach_happened-0.2.jar SHA-1 8701233aa115ac48ebc22940d093144abad2520f · Modrinth version jfRmUSdA · Project link unavailable Side not labelled
balm-fabric-1.21.11-21.11.3.jar SHA-1 1bdb9d28c2bf7b6831182ad321ef1debfb6da078 · Modrinth version RNhvPwjz · Project link unavailable Side not labelled
cloth-config-21.11.153-fabric.jar SHA-1 4c224606a963bce223db5b27edb4959ecf40d4ee · Modrinth version xuX40TN5 · Project link unavailable Side not labelled
collective-1.21.11-8.13.jar SHA-1 3489d194119cede1725f5853027f7c35639d8ddc · Modrinth version T8rv7kwo · Project link unavailable Side not labelled
Contagion-1.5.6-Fabric-mc1.21.11.jar SHA-1 773b720574ac0b19b740f694a754f1d4a1368aa1 · Modrinth version 5wPerYPt · Project link unavailable Side not labelled
dyedvoid-1.0.4+mc1.21.11.jar SHA-1 bbec99e43b8cf5ee33941cd07b3e45419b30736f · Modrinth version DtZN0Fbv · Project link unavailable Side not labelled
enhanced-mobs-1.0.1.jar SHA-1 1fd7af8632390c8e80fce41634cbdf633bcc4055 · Modrinth version fDrLId3G · Project link unavailable Side not labelled
fabric-api-0.140.2+1.21.11.jar SHA-1 c115a7e4442bb6f54cb316efa28fb7d41d2e103c · Modrinth version gB6TkYEJ · Project link unavailable Side not labelled
fabric-language-kotlin-1.13.8+kotlin.2.3.0.jar SHA-1 05fe02fe61232c4ddea4059e8103281424d5a2bd · Modrinth version N6D3uiZF · Project link unavailable Side not labelled
hardcorerevival-fabric-1.21.11-21.11.1.jar SHA-1 184276fae09e91178b789938157f7a10771bc8d5 · Modrinth version 7oNQxhG1 · Project link unavailable Side not labelled
iris-fabric-1.10.4+mc1.21.11.jar SHA-1 5b9a93e688af07555b6ded6ed95366a4197f74bb · Modrinth version Q4YiZeCX · Project link unavailable Client only
lithium-fabric-0.21.2+mc1.21.11.jar SHA-1 c1f8f61d4b2fac28ab083a927c6b1338598255ed · Modrinth version gl30uZvp · Project link unavailable Side not labelled
midnightlib-fabric-1.9.2+1.21.11.jar SHA-1 b9617fa5722a8cdc321781a2b6dd97217fcfdc2a · Modrinth version OeTayxh3 · Project link unavailable Side not labelled
more_mobs-v1.5.8-mc1.14-1.21.11-mod.jar SHA-1 16a835833b91bc5a9bba457666bcc6e446fff6d0 · Modrinth version tm3a2MGV · Project link unavailable Side not labelled
nightmare-mode-V1.3.4-data.jar SHA-1 18ac940dc94f50b00b24c027be56ea4097e1c644 · Modrinth version vSUB8K2J · Project link unavailable Side not labelled
nine_lifes-2.0.2+1.21.11.jar SHA-1 6c66969ec191101c9a49436a8e864ae9213708c2 · Modrinth version NdtDHDrq · Project link unavailable Side not labelled
oneblock-2.3.4.jar SHA-1 7a7b6ccec466155c4acef0711293c16ca530a743 · Modrinth version QgCAzSna · Project link unavailable Side not labelled
sodium-fabric-0.8.2+mc1.21.11.jar SHA-1 eaae2b226d76079e56ae6f5d4f5dc96214bd49d3 · Modrinth version 59wygFUQ · Project link unavailable Client only
spawnanimations-v1.11.3-mc1.17-1.21.11-mod.jar SHA-1 d8d38a01b2e46db2dfd393a946bb02a31edbcd7c · Modrinth version dXw74N2Q · Project link unavailable Side not labelled
wild-wolves-datapack-2.2.jar SHA-1 0e5457c27f64cd4b446864dba7a81f653b032f42 · Modrinth version FZCn36IX · Project link unavailable Side not labelled
zombiehorsespawn-1.21.11-5.2.jar SHA-1 d59c16992bb55385192978c8307d8eb661390f4d · Modrinth version NG34wHGs · Project link unavailable Server only

Pick your setup

One Block Hardcore by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

1 available setups

Made local changes? Try them in a copied instance before touching a world you care about.

Recent files

One Block Hardcore versions and loaders

1 of 1 releases match

Looking for an older file? The official Modrinth project page is in Resources.