
plugin
MythicalACMinecraft plugin for 1.21.11
Server-side anticheat for Forge 1.20.1 & Paper 1.21.x. Detects movement, combat, build & inventory hacks (Fly, Speed, Reach, KillAura, Scaffold, AutoTotem, Nuker) with configurable checks and rubber-band setbacks.
- Latest version
- 1.1
- Minecraft
- 1.20.1 to 1.21.11
- Java
- Java 21+
- Loaders
- Paper, Forge
- Licence
- LicenseRef-All-Rights-Reserved
- Downloads
- 106
- Updated
- 9 d ago
- Available on
- Modrinth
Host MythicalAC servers
One click and MythicalAC is installed with the right loader, on hardware built for it.
- 1.21.11
- Paper
- Forge
- One click plugin install
- Paper and Purpur ready
- Automatic updates
- 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 MythicalAC declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 1.21.11 | Paper, Forge | 21+ | declared | 9 Dec 2025 |
| 1.21.10 | Forge, Paper | 21+ | declared | 7 Oct 2025 |
| 1.21.9 | Forge, Paper | 21+ | declared | 30 Sept 2025 |
| 1.21.8 | Paper, Forge | 21+ | declared | 17 Jul 2025 |
| 1.21.7 | Paper, Forge | 21+ | declared | 30 Jun 2025 |
| 1.21.6 | Forge, Paper | 21+ | declared | 17 Jun 2025 |
| 1.21.5 | Paper, Forge | 21+ | declared | 25 Mar 2025 |
| 1.21.4 | Paper, Forge | 21+ | declared | 3 Dec 2024 |
| 1.21.3 | Paper, Forge | 21+ | declared | 23 Oct 2024 |
| 1.21.2 | Forge, Paper | 21+ | declared | 22 Oct 2024 |
| 1.21.1 | Paper, Forge | 21+ | declared | 8 Aug 2024 |
| 1.21 | Paper, Forge | 21+ | declared | 13 Jun 2024 |
| 1.20.1 | Paper, Forge | 17+ | declared | 12 Jun 2023 |
Download
From MythicalAC’s own host. Nothing is re-hosted here.
mythicalac-forge-1.20.1-1.0.0.jar · 0.1 MB · for 1.20.1
15794b363782…Older versions11Hide older versions
- 1.1123 Jul 20261.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.1 MB23 downloads
93f4578dcc66…Get - 1.0.921 Jul 20261.20.10.1 MB7 downloads
51a6ddcdcb28…Get - 1.0.814 Jul 20261.20.10.1 MB1 downloads
0985489abaea…Get - 1.0.714 Jul 20261.20.10.1 MB1 downloads
d329f5a168f7…Get - 1.0.614 Jul 20261.20.10.1 MB2 downloads
bf59721073d3…Get - 1.0.513 Jul 20261.20.10.0 MB
b840a6d80cce…Get - 1.0.413 Jul 20261.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB
ce1e529ed4e0…Get - 1.0.313 Jul 20261.20.10.0 MB1 downloads
1f1c1488c006…Get - 1.0.213 Jul 20261.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB1 downloads
5161133a6a4a…Get - 1.0.112 Jul 20261.20.10.0 MB
b8639f066d57…Get - 1.0.012 Jul 20261.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB1 downloads
1f174a52a694…Get
Frequently asked
Does MythicalAC work on Minecraft 1.21.11?
Yes. 1.21.11 is the newest Minecraft version MythicalAC 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 MythicalAC support?
Everything the author has declared, from 1.20.1 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install MythicalAC on the client or the server?
The server only. Players join with an ordinary Minecraft client and install nothing.
Which server software does MythicalAC need?
Paper, Forge. A build for one server platform will not load on another, so this is the first thing to check before the Minecraft version.
Which Java version do I need for MythicalAC?
Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the plugin itself.
What licence is MythicalAC under?
LicenseRef-All-Rights-Reserved, 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 MythicalAC?
Download the file from the author's own release, drop it into your server's plugins folder, and restart the server. It generates its configuration on first start. Check the Minecraft version matches the one your server runs.
Where do I download MythicalAC safely?
From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.
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? .

