
plugin
Building CompetitionMinecraft plugin for 1.21.11
A Paper plugin for creating a long-term building competition server. Provides plot management and protections.
- Latest version
- v1.0.0
- Minecraft
- 1.21 to 1.21.11
- Java
- Java 21+
- Loaders
- Purpur, Paper
- Licence
- GPL-3.0-or-later
- Downloads
- 73
- Updated
- 2 mo ago
- Available on
- Modrinth
Host Building Competition servers
One click and Building Competition is installed with the right loader, on hardware built for it.
- 1.21.11
- Purpur
- Paper
- 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 Building Competition declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 1.21.11 | Purpur, Paper | 21+ | declared | 9 Dec 2025 |
| 1.21.10 | Purpur, Paper | 21+ | declared | 7 Oct 2025 |
| 1.21.9 | Paper, Purpur | 21+ | declared | 30 Sept 2025 |
| 1.21.8 | Purpur, Paper | 21+ | declared | 17 Jul 2025 |
| 1.21.7 | Purpur, Paper | 21+ | declared | 30 Jun 2025 |
| 1.21.6 | Paper, Purpur | 21+ | declared | 17 Jun 2025 |
| 1.21.5 | Purpur, Paper | 21+ | declared | 25 Mar 2025 |
| 1.21.4 | Paper, Purpur | 21+ | declared | 3 Dec 2024 |
| 1.21.3 | Paper, Purpur | 21+ | declared | 23 Oct 2024 |
| 1.21.2 | Purpur, Paper | 21+ | declared | 22 Oct 2024 |
| 1.21.1 | Purpur, Paper | 21+ | declared | 8 Aug 2024 |
| 1.21 | Paper, Purpur | 21+ | declared | 13 Jun 2024 |
Download
From Building Competition’s own host. Nothing is re-hosted here.
building-competition-1.0.0.jar · 0.0 MB · for 1.21, 1.21.1, 1.21.2, 1.21.3
7736a8dfd473…Older versions4Hide older versions
- v0.1.129 Apr 20261.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB21 downloads
8915a16bb21b…Get - v0.1.027 Apr 20261.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB8 downloads
b94d575ac9ac…Get - 0.0.210 Apr 20261.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB17 downloads
c1592d4fe97b…Get - 0.0.125 Mar 20261.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB11 downloads
70268eea6a94…Get
Frequently asked
Does Building Competition work on Minecraft 1.21.11?
Yes. 1.21.11 is the newest Minecraft version Building Competition 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 Building Competition support?
Everything the author has declared, from 1.21 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 Building Competition on the client or the server?
The server only. Players join with an ordinary Minecraft client and install nothing.
Which server software does Building Competition need?
Purpur, Paper. 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 Building Competition?
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 Building Competition under?
GPL-3.0-or-later, 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 Building Competition?
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 Building Competition 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? .

