Question 1

Does Iridium Skyblock [1.13-1.21.10] work on Minecraft 1.21?

Accepted Answer

Yes. 1.21 is the newest Minecraft version Iridium Skyblock [1.13-1.21.10] declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Question 2

Which Minecraft versions does Iridium Skyblock [1.13-1.21.10] support?

Accepted Answer

Everything the author has declared, from 1.13 up to 1.21. The full list is in the table above, with the Java runtime each version needs next to it.

Question 3

Do I need to install Iridium Skyblock [1.13-1.21.10] on the client or the server?

Accepted Answer

The server only. Players join with an ordinary Minecraft client and install nothing.

Question 4

Which platform or loader does Iridium Skyblock [1.13-1.21.10] support?

Accepted Answer

Spigot. 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.

Question 5

Which Java version do I need for Iridium Skyblock [1.13-1.21.10]?

Accepted Answer

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.

Question 6

How do I install Iridium Skyblock [1.13-1.21.10]?

Accepted Answer

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.

Question 7

Where do I download Iridium Skyblock [1.13-1.21.10] safely?

Accepted Answer

Start with the author's page on SpigotMC, 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.

Minecraft	Through	Java	Evidence	Released
1.21	Spigot	21+	declared	13 Jun 2024
1.20.6	Spigot	21+	declared	29 Apr 2024
1.20	Spigot	17+	declared	2 Jun 2023
1.19	Spigot	17+	declared	7 Jun 2022
1.18	Spigot	17+	declared	30 Nov 2021
1.17	Spigot	16+	declared	8 Jun 2021
1.16	Spigot	8+	declared	23 Jun 2020
1.15	Spigot	8+	declared	9 Dec 2019
1.14	Spigot	8+	declared	23 Apr 2019
1.13	Spigot	8+	declared	18 Jul 2018

Iridium Skyblock [1.13-1.21.10]Minecraft plugin for 1.21

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