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How to install "SI: Spectre [DISCONTINUED]"

DISCONTINUED

Author

SoncresityIndustries

Downloads

115.9K

Last Updated

Apr 10, 2026

Minecraft Versions

26.1.2 1.21.11 1.20.6 1.19.4 1.18.2 1.17.1
Realistic Fantasy Vanilla

Quick Install ID

#sisp

Install SI: Spectre [DISCONTINUED] in GDLauncher

  1. Open GDLauncher and pick (or create) the instance you want to add SI: Spectre [DISCONTINUED] to.
  2. Open the Addons tab and click Add Addons.
  3. Paste the Quick Install ID #sisp, select SI: Spectre [DISCONTINUED], and click Download. GDLauncher handles dependencies and version matching automatically.
  4. Hit Play and you're done.

Before you install

Make sure your Minecraft version matches what SI: Spectre [DISCONTINUED] supports. As of the latest release, 26.1.2, 1.21.11, 1.20.6 are supported. GDLauncher checks compatibility for you and won't install something incompatible with the instance you've chosen.

Frequently Asked Questions

Is SI: Spectre [DISCONTINUED] free?

Yes. SI: Spectre [DISCONTINUED] is free to download and install through GDLauncher. GDLauncher itself is also free and ad-free.

What Minecraft versions does SI: Spectre [DISCONTINUED] support?

SI: Spectre [DISCONTINUED] supports Minecraft 26.1.2, 1.21.11, 1.20.6, 1.19.4, 1.18.2, 1.17.1. GDLauncher will automatically pick a compatible version when you install it.

Does SI: Spectre [DISCONTINUED] require Forge or Fabric?

Check the CurseForge page for SI: Spectre [DISCONTINUED] to see which mod loader it supports. GDLauncher will install the correct loader automatically once you pick the addon.

How do I install SI: Spectre [DISCONTINUED]?

Open GDLauncher, go to your instance's Addons tab, click Add Addons, and paste the Quick Install ID #sisp. GDLauncher handles dependencies and the right Minecraft version automatically.

Who made SI: Spectre [DISCONTINUED]?

SI: Spectre [DISCONTINUED] is made by SoncresityIndustries. The full project lives on CurseForge (https://www.curseforge.com/minecraft/shaders/sisp).

Need help?

Read our troubleshooting guide, check the guides section, or join the GDLauncher Discord community.

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