
- Latest version
- fabric-1.21.1-3.4.7
- Minecraft
- 1.18.2 to 1.21.3
- Java
- Java 21+
- Loaders
- Fabric, Quilt, NeoForge, Forge
- Licence
- CC-BY-ND-4.0
- Downloads
- 1.1M
- Updated
- 4 mo ago
- Available on
- Modrinth
Host William Wythers' Expanded Ecosphere servers
One click and William Wythers' Expanded Ecosphere is installed with the right loader, on hardware built for it.
- 1.21.3
- Fabric
- Quilt
- NeoForge
- Forge
- One click mod install
- Loader matched for you
- Ryzen CPUs
- NVMe SSD
Screenshots
Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.
Minecraft versions
Every version William Wythers' Expanded Ecosphere declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 1.21.3 | Fabric, Quilt, NeoForge, Forge | 21+ | declared | 23 Oct 2024 |
| 1.21.1 | Forge, Quilt, NeoForge, Fabric | 21+ | declared | 8 Aug 2024 |
| 1.21 | Forge, Quilt, NeoForge, Fabric | 21+ | declared | 13 Jun 2024 |
| 1.20.4 | Forge, Quilt, NeoForge, Fabric | 17+ | declared | 7 Dec 2023 |
| 1.20.2 | Fabric, Forge, NeoForge, Quilt | 17+ | declared | 20 Sept 2023 |
| 1.20.1 | Fabric, Quilt, NeoForge, Forge | 17+ | declared | 12 Jun 2023 |
| 1.20 | Forge, Quilt, NeoForge, Fabric | 17+ | declared | 2 Jun 2023 |
| 1.19.4 | NeoForge, Quilt, Forge, Fabric | 17+ | declared | 14 Mar 2023 |
| 1.19.2 | Fabric, Quilt, NeoForge, Forge | 17+ | declared | 5 Aug 2022 |
| 1.18.2 | NeoForge, Forge, Fabric, Quilt | 17+ | declared | 28 Feb 2022 |
Download
From William Wythers' Expanded Ecosphere’s own host. Nothing is re-hosted here.
For Minecraft 1.21.3
Choose the loader you use before downloading.
- Choose file on publisher ↗
Fabric, NeoForge
3.4.3 · 16 Nov 2024
Multiple loaders are listed; verify the file before downloading.
Most recently published release
expanded_ecosphere-fabric-3.4.7.jar · 1.7 MB · for 1.21.1 · Fabric
15460d530796…Older versions20Hide older versions
- neoforge-1.21.1-3.4.74 Jul 20261.21.11.7 MB
082878bc1739…Get - fabric-1.21.1-3.4.627 May 20261.21.11.7 MB
422338e5391e…Get - neoforge-1.21.1-3.4.627 May 20261.21.11.7 MB
6f5a601cd932…Get - 3.4.54 Dec 20251.21.11.7 MB
9e0208d1fe95…Choose file on publisher ↗ - 3.4.417 Nov 20251.21.11.7 MB
acf5c2b56d88…Choose file on publisher ↗ - 3.4.316 Nov 20241.21.31.7 MB
55a72e217f88…Choose file on publisher ↗ - 3.4.1.116 Nov 20241.21.1, 1.211.7 MB
ec77b9405a6e…Choose file on publisher ↗ - 3.4.210 Nov 20241.21.31.7 MB
2f680aba0e0b…Choose file on publisher ↗ - 3.4.121 Sept 20241.21.1, 1.211.7 MB
d5eb7e71384a…Choose file on publisher ↗ - 3.4.024 Jul 20241.211.7 MB
dc8aa3360e5b…Choose file on publisher ↗ - 3.2.43 Jan 20241.20.11.9 MB
0a406459197e…Choose file on publisher ↗ - 3.3.129 Dec 20231.20.41.9 MB
47307994f5df…Get - 3.3.07 Nov 20231.20.21.9 MB
8c5393e6a52f…Choose file on publisher ↗ - 3.2.37 Nov 20231.20.11.9 MB
758963d78b81…Choose file on publisher ↗ - 3.2.113 Sept 20231.20.11.9 MB
e763af059ff2…Choose file on publisher ↗ - 3.2.029 Aug 20231.20.1, 1.201.6 MB
a1c95db2e8d5…Choose file on publisher ↗ - 3.1.9.16 May 20231.19.21.9 MB
1e207ee39586…Get - 3.1.96 May 20231.19.22.0 MB
ad62ced4dce7…Get - 2.6.427 Apr 20231.18.21.5 MB
42f67f154d55…Choose file on publisher ↗ - 3.1.1316 Apr 20231.19.42.0 MB
fac3f00f1966…Get
Frequently asked
Does William Wythers' Expanded Ecosphere work on Minecraft 1.21.3?
Yes. 1.21.3 is the newest Minecraft version William Wythers' Expanded Ecosphere 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 William Wythers' Expanded Ecosphere support?
Everything the author has declared, from 1.18.2 up to 1.21.3. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install William Wythers' Expanded Ecosphere on the client or the server?
The server only. Players join with an ordinary Minecraft client and install nothing.
Which platform or loader does William Wythers' Expanded Ecosphere support?
Fabric, Quilt, 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 William Wythers' Expanded Ecosphere?
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 licence is William Wythers' Expanded Ecosphere under?
CC-BY-ND-4.0, 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 William Wythers' Expanded Ecosphere?
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 William Wythers' Expanded Ecosphere 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.
Is this information wrong or missing something? .

