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L2 HostilityMinecraft mod for 1.21.1

Enemy enhancement mod that buffs enemy and adds special traits for them. Difficulty progression suits player strength well

client and servernewest supported 1.21.1UtilityAdventureMobsEquipment
Latest version
3.0.18
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
Forge, NeoForge
Licence
LGPL-2.1-only
Downloads
1.8M
Updated
6 mo ago
Available on
Modrinth
Space NodeOur hosting

Host L2 Hostility servers

One click and L2 Hostility is installed with the right loader, on hardware built for it.

  • 1.21.1
  • Forge
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version L2 Hostility declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023

Download

From L2 Hostility’s own host. Nothing is re-hosted here.

All 46 releases
3.0.18release26 Mar 2026

l2hostility-3.0.18.jar · 2.2 MB · for 1.21.1

Download latest
d97219b0bfca…
Older versions24
  • 2.5.1926 Mar 20261.20.11.3 MB386.9k downloads74fabfd33397…Get
  • 3.0.1712 Mar 20261.21.12.2 MB1.4k downloadsbde7334627e4…Get
  • 2.5.1812 Mar 20261.20.11.3 MB170.2k downloads1ee852c35942…Get
  • 3.0.1627 Feb 20261.21.12.2 MB1.3k downloadsde2fcc5cf481…Get
  • 2.5.1727 Feb 20261.20.11.3 MB832.5k downloadsfc13e5f1b99c…Get
  • 3.0.1517 Feb 20261.21.12.2 MB1.1k downloads634ced5e7b99…Get
  • 2.5.1617 Feb 20261.20.11.3 MB15.5k downloads815bc74d5043…Get
  • 2.5.1515 Feb 20261.20.11.3 MB669 downloads85ec319aaac6…Get
  • 3.0.1430 Jan 20261.21.12.2 MB1.9k downloads42865bf8ce4f…Get
  • 2.5.1430 Jan 20261.20.11.3 MB17.0k downloadsf7d630cfb232…Get
  • 2.5.1325 Jan 20261.20.11.3 MB2.1k downloads7dcd90a226d2…Get
  • 3.0.1325 Jan 20261.21.12.2 MB2.7k downloadsf9a6285856ac…Get
  • 2.5.1224 Jan 20261.20.11.3 MB587 downloads745a083a0e5e…Get
  • 2.5.1124 Jan 20261.20.11.3 MB268 downloadsff06f9eb35ac…Get
  • 2.5.1011 Sept 20251.20.11.3 MB278.7k downloads34461587552c…Get
  • 2.5.925 Jul 20251.20.11.3 MB10.6k downloads390beca54d6b…Get
  • 2.5.815 Jul 20251.20.11.3 MB90.4k downloadsd4af088079f4…Get
  • 3.0.123 Jun 20251.21.12.2 MB10.1k downloadsbe0437ac881f…Get
  • 2.5.63 Jun 20251.20.11.3 MB10.6k downloadsd2e61d507a7a…Get
  • 3.0.1130 May 20251.21.12.2 MB202 downloadsa54bf82b437a…Get
  • 3.0.1024 May 20251.21.12.1 MB219 downloadsa9a7319becc9…Get
  • 3.0.95 May 20251.21.12.1 MB294 downloadsaa83624bd1e0…Get
  • 2.5.55 May 20251.20.11.3 MB20.2k downloadsa679da04e2c3…Get
  • 2.5.420 Mar 20251.20.11.3 MB9.9k downloads7c325f15199c…Get

Frequently asked

Does L2 Hostility work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version L2 Hostility 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 L2 Hostility support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install L2 Hostility on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does L2 Hostility support?

Forge, 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 L2 Hostility?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is L2 Hostility under?

LGPL-2.1-only, 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 L2 Hostility?

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 L2 Hostility 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.

BookshelfAn open source library for other mods!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.

Last checked 2 mo ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .