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Lost SoulsMinecraft mod for 1.21.1

The Lost Cities addon to add more danger to the buildings.

server onlynewest supported release 1.21.1AdventureMobsWorldgen
Latest version
1.20-4.1.7
Minecraft
1.12 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
MIT
Downloads
91.9k
Updated
3 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Lost Souls servers

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

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

Minecraft versions

Every version Lost Souls declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.19.3Forge, NeoForge17+declared7 Dec 2022
1.19.2Forge, NeoForge17+declared5 Aug 2022
1.18.2Forge, NeoForge17+declared28 Feb 2022
1.12.2Forge, NeoForge8+declared18 Sept 2017
1.12.1NeoForge, Forge8+declared3 Aug 2017
1.12Forge, NeoForge8+declared2 Jun 2017

Download

From Lost Souls’s own host. Nothing is re-hosted here.

Browse 37 indexed releases

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • NeoForge

    1.21-5.0.1 · 26 Dec 2025 · lostsouls-1.21-5.0.1.jar

    Get NeoForge

Most recently published release

1.20-4.1.7release13 Aug 2026

lostsouls-1.20-4.1.7.jar · 47 KB · for 1.20.1 · Forge

Download this release
b54b382901b3…
Older versions24
  • 1.21-5.0.126 Dec 20251.21.145 KB1.9k downloads81ac2752c320…Get
  • 1.20-4.1.626 Dec 20251.20.146 KB3.7k downloads3d671debf67b…Get
  • 1.21-5.0.04 Dec 20251.21.145 KB103 downloadsbfaac317dd5d…Get
  • 1.20-4.1.512 Sept 20251.20.146 KB1.9k downloadse7794d0392d1…Get
  • 1.20-4.1.43 Aug 20251.20.146 KB8.0k downloadsfddd514bc3a9…Get
  • 1.20-4.1.32 Aug 20251.20.146 KB59 downloads93d7aa71cfde…Get
  • 1.20-4.1.22 Aug 20251.20.146 KB55 downloadsce4190c4b6b3…Get
  • 1.20-4.1.12 Aug 20251.20.145 KB379 downloads5544252936e5…Get
  • 1.20-4.1.012 Aug 20241.20.145 KB11.8k downloads3f4cd191ee93…Get
  • 1.19-3.1.012 Aug 20241.19.245 KB7.6k downloads12006876188e…Get
  • 1.20-4.0.47 May 20241.20.133 KB3.4k downloadsbc09bb550235…Get
  • 1.19-3.0.47 May 20241.19.233 KB317 downloads1e6dae87bd8e…Get
  • 1.18-2.0.56 May 20241.18.233 KB31.7k downloads972e613a9671…Get
  • 1.20-4.0.316 Mar 20241.20.132 KB432 downloads774d8c91be33…Get
  • 1.19-3.0.316 Mar 20241.19.232 KB205 downloads3e7a9b5c81fb…Get
  • 1.18-2.0.416 Mar 20241.18.231 KB163 downloads32bad5864827…Get
  • 1.20-4.0.26 Mar 20241.20.132 KB1.3k downloads16030eb024f5…Get
  • 1.19-3.0.26 Mar 20241.19.232 KB149 downloads0f9db2f868d6…Get
  • 1.18-2.0.36 Mar 20241.18.231 KB159 downloads29d2c9b79b4d…Get
  • 1.20-4.0.18 Dec 20231.20.131 KB361 downloads03e34ed1163d…Get
  • 1.20-4.0.020 Jun 20231.20.131 KB687 downloads3aad9dc313c8…Get
  • 1.18-2.0.228 Mar 20231.18.231 KB308 downloads17971ffae596…Get
  • 1.18-2.0.17 Feb 20231.18.231 KB125 downloadsd7c5233147c6…Get
  • 1.19-3.0.17 Feb 20231.19.231 KB312 downloads5565e316c6f5…Get

Dependencies

What Lost Soulsdeclares it needs, from the author’s own release metadata. A required one has to be installed alongside it or it will not load.

The Lost CitiesRequired. Allows the player to play in an old abandoned city instead of the normal overworldThe One ProbeOptional. TOP, a WAILA alternative that shows information about what you're looking at

Frequently asked

Does Lost Souls work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Lost Souls 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 Lost Souls support?

Everything the author has declared, from 1.12 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 Lost Souls on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

Which platform or loader does Lost Souls support?

NeoForge, Forge. 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 Lost Souls?

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.

What does Lost Souls need to run?

It declares The Lost Cities as required, so that has to be installed alongside it or it will not load. Each one is linked in the dependencies section above.

What licence is Lost Souls under?

MIT, 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 Lost Souls?

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 Lost Souls 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. 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.

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.

Details from Modrinth, where the author last updated it on 13 Aug 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? .