
- Latest version
- 1.3.3
- Minecraft
- 1.20.1 to 1.21.1
- Java
- Java 21+
- Loaders
- NeoForge, Forge
- Licence
- MIT
- Downloads
- 615
- Updated
- 3 mo ago
- Available on
- Modrinth
Host Summer Addition servers
One click and Summer Addition is installed with the right loader, on hardware built for it.
- 1.21.1
- 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 Summer Addition declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 1.21.1 | NeoForge, Forge | 21+ | declared | 8 Aug 2024 |
| 1.20.6 | NeoForge, Forge | 21+ | declared | 29 Apr 2024 |
| 1.20.5 | Forge, NeoForge | 21+ | declared | 23 Apr 2024 |
| 1.20.4 | NeoForge, Forge | 17+ | declared | 7 Dec 2023 |
| 1.20.3 | NeoForge, Forge | 17+ | declared | 4 Dec 2023 |
| 1.20.2 | NeoForge, Forge | 17+ | declared | 20 Sept 2023 |
| 1.20.1 | Forge, NeoForge | 17+ | declared | 12 Jun 2023 |
Download
From Summer Addition’s own host. Nothing is re-hosted here.
summeraddition-1.3.3.jar · 0.2 MB · for 1.21.1
2e4c00227cd4…Older versions10Hide older versions
- 1.3.210 Jul 20261.21.10.2 MB5 downloads
4707c7810b38…Get - 1.3.110 Jul 20261.21.188 KB3 downloads
27a4d1768c6c…Get - 1.3.09 Jul 20261.21.188 KB7 downloads
5cdd216751c5…Get - 1.2.67 Jul 20261.20.193 KB43 downloads
d8a7659273cb…Get - 1.2.521 Jun 20261.20.193 KB78 downloads
7424204c1c1f…Get - 1.2.420 Jun 20261.20.193 KB12 downloads
5cf272f9da6c…Get - 1.2.320 Jun 20261.20.193 KB5 downloads
b7b1cab6ab90…Get - 1.2.217 Dec 20251.20.194 KB196 downloads
35134b0524f7…Get - 1.2.127 Jul 20251.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more93 KB183 downloads
76583610025e…Get - 1.2.019 Jul 20251.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more87 KB68 downloads
dfbf0a95e805…Get
Frequently asked
Does Summer Addition work on Minecraft 1.21.1?
Yes. 1.21.1 is the newest Minecraft version Summer Addition 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 Summer Addition support?
Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install Summer Addition 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 Summer Addition 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 Summer Addition?
On the newest Minecraft version it supports, Java 21 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 Summer Addition 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 Summer Addition?
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 Summer Addition 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? .

