
mod
Illegal BuildingMinecraft mod for 26.2
Some cursed Minecraft additions
- Latest version
- 11.0.0
- Minecraft
- 1.16.5 to 26.2
- Java
- Java 25+
- Loaders
- NeoForge, Forge
- Licence
- MIT
- Downloads
- 6.0k
- Updated
- 2 mo ago
- Available on
- Modrinth
Host Illegal Building servers
One click and Illegal Building is installed with the right loader, on hardware built for it.
- 26.2
- 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 Illegal Building declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 26.2 | NeoForge, Forge | 25+ | declared | 16 Jun 2026 |
| 26.1.2 | NeoForge, Forge | 25+ | declared | 9 Apr 2026 |
| 1.21.11 | Forge, NeoForge | 21+ | declared | 9 Dec 2025 |
| 1.21.8 | NeoForge, Forge | 21+ | declared | 17 Jul 2025 |
| 1.21.5 | Forge, NeoForge | 21+ | declared | 25 Mar 2025 |
| 1.21.4 | NeoForge, Forge | 21+ | declared | 3 Dec 2024 |
| 1.21.1 | NeoForge, Forge | 21+ | declared | 8 Aug 2024 |
| 1.21 | Forge, NeoForge | 21+ | declared | 13 Jun 2024 |
| 1.20.6 | NeoForge, Forge | 21+ | declared | 29 Apr 2024 |
| 1.20.4 | NeoForge, Forge | 17+ | declared | 7 Dec 2023 |
| 1.20.2 | NeoForge, Forge | 17+ | declared | 20 Sept 2023 |
| 1.20.1 | NeoForge, Forge | 17+ | declared | 12 Jun 2023 |
| 1.20 | NeoForge, Forge | 17+ | declared | 2 Jun 2023 |
| 1.19.4 | Forge, NeoForge | 17+ | declared | 14 Mar 2023 |
| 1.19.3 | NeoForge, Forge | 17+ | declared | 7 Dec 2022 |
| 1.19.2 | NeoForge, Forge | 17+ | declared | 5 Aug 2022 |
| 1.18.2 | NeoForge, Forge | 17+ | declared | 28 Feb 2022 |
| 1.18.1 | NeoForge, Forge | 17+ | declared | 10 Dec 2021 |
| 1.18 | NeoForge, Forge | 17+ | declared | 30 Nov 2021 |
| 1.17.1 | NeoForge, Forge | 16+ | declared | 6 Jul 2021 |
| 1.16.5 | NeoForge, Forge | 8+ | declared | 14 Jan 2021 |
Download
From Illegal Building’s own host. Nothing is re-hosted here.
IllegalBuilding-26.1.2-11.0.0.jar · 73 KB · for 26.1.2
59bba5e5a8f8…Older versions19Hide older versions
- 10.0.04 Mar 20261.21.1174 KB137 downloads
6033fdc01db9…Get - 9.0.017 Sept 20251.21.875 KB173 downloads
1295f7edd59e…Get - 8.0.017 Sept 20251.21.574 KB43 downloads
0be4fcb89001…Get - 7.0.016 Sept 20251.21.474 KB64 downloads
0a4c3f9d6e25…Get - 6.0.115 Sept 20251.21.168 KB333 downloads
8942dca868df…Get - 6.0.02 Aug 20241.2157 KB486 downloads
818b5bfe835e…Get - 5.0.05 Jun 20241.20.657 KB168 downloads
9a4d8e804d1e…Get - 4.0.117 Feb 20241.20.457 KB204 downloads
ca2c97d13cf1…Get - 4.0.01 Jan 20241.20.458 KB116 downloads
5efe2100fab2…Get - 3.0.029 Nov 20231.20.257 KB125 downloads
08f0c1385836…Get - 2.0.127 Jun 20231.20.1, 1.2059 KB1.9k downloads
a9989f3aeff6…Get - 2.0.024 Jun 20231.20.1, 1.2059 KB135 downloads
d89e965d577f…Get - 1.2.08 Apr 20231.19.459 KB213 downloads
4b1d91143894…Get - 1.1.028 Dec 20221.19.359 KB166 downloads
b7e155c216e2…Get - 1.0.128 Dec 20221.19.259 KB446 downloads
563fbbcb7311…Get - 1.0.1.124 May 20221.16.557 KB378 downloads
38498ecfa798…Get - 1.0.1.224 May 20221.17.158 KB178 downloads
18afb109f123…Get - 1.0.1.324 May 20221.18.1, 1.1858 KB163 downloads
a089cfc672a9…Get - 1.0.1.424 May 20221.18.259 KB300 downloads
83bf7418cdee…Get
Frequently asked
Does Illegal Building work on Minecraft 26.2?
Yes. 26.2 is the newest Minecraft version Illegal Building 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 Illegal Building support?
Everything the author has declared, from 1.16.5 up to 26.2. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install Illegal Building 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 Illegal Building 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 Illegal Building?
On the newest Minecraft version it supports, Java 25 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 Illegal Building 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 Illegal Building?
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 Illegal Building 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.
Is this information wrong or missing something? .

