
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
- 1.12
- Minecraft
- 1.20.1 to 1.21.11
- Java
- Java 21+
- Platforms
- Paper, Forge
- Licence
- LicenseRef-All-Rights-Reserved
- Downloads
- 510
- Updated
- 2 mo ago
- Available on
- Modrinth
Host MythicalAC servers
One click and MythicalAC is installed on a Paper or Purpur server 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.
Most recently published release
MythicalAC-1.0.0.jar · 63 KB · for 1.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more · Paper
0aa1d4d1fabd…Older versions12Hide older versions
- 1.123 Jul 20261.20.160 KB17 downloads
15794b363782…Get - 1.1123 Jul 20261.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more62 KB23 downloads
93f4578dcc66…Get - 1.0.921 Jul 20261.20.160 KB7 downloads
51a6ddcdcb28…Get - 1.0.814 Jul 20261.20.159 KB1 download
0985489abaea…Get - 1.0.714 Jul 20261.20.159 KB1 download
d329f5a168f7…Get - 1.0.614 Jul 20261.20.159 KB2 downloads
bf59721073d3…Get - 1.0.513 Jul 20261.20.148 KB
b840a6d80cce…Get - 1.0.413 Jul 20261.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more40 KB
ce1e529ed4e0…Get - 1.0.313 Jul 20261.20.148 KB1 download
1f1c1488c006…Get - 1.0.213 Jul 20261.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more40 KB1 download
5161133a6a4a…Get - 1.0.112 Jul 20261.20.146 KB
b8639f066d57…Get - 1.0.012 Jul 20261.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more37 KB1 download
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 platform or loader does MythicalAC support?
Paper, 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 MythicalAC?
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 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?
Choose the release variant for your server platform. Paper, Spigot, Purpur and Bukkit files go in the server's plugins folder; Fabric, Forge, NeoForge and Quilt files go in the mods folder. Restart after installing and check that the Minecraft version matches your server.
Where do I download MythicalAC 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? .

