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CognitionMinecraft mod for 1.21.5

Formerly Experience Obelisk. Overhaul your minecraft experience with strange and arcane technologies

client and servernewest supported release 1.21.5TechnologyUtilityStorageMagic
Latest version
2.4.13
Minecraft
1.18.1 to 1.21.5
Java
Java 21+
Loaders
NeoForge, Forge
Licence
MIT
Downloads
107.8k
Updated
4 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Cognition servers

One click and Cognition is installed with the right loader, on hardware built for it.

  • 1.21.5
  • NeoForge
  • Forge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Cognition declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.5NeoForge, Forge21+declared25 Mar 2025
1.21.4Forge, NeoForge21+declared3 Dec 2024
1.21.3NeoForge, Forge21+declared23 Oct 2024
1.21.2NeoForge, Forge21+declared22 Oct 2024
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.19.4NeoForge, Forge17+declared14 Mar 2023
1.19.3NeoForge, Forge17+declared7 Dec 2022
1.19.2Forge, NeoForge17+declared5 Aug 2022
1.18.2NeoForge, Forge17+declared28 Feb 2022
1.18.1NeoForge, Forge17+declared10 Dec 2021

Download

From Cognition’s own host. Nothing is re-hosted here.

Browse 40 indexed releases

For Minecraft 1.21.5

Choose the loader you use before downloading.

  • NeoForge

    2.4.1 · 9 May 2025 · Cognition-v2.4.1-1.21.1-beta.jar

    Get NeoForge

Most recently published release

2.4.13release10 Jul 2026

Cognition-v2.4.13-1.21.1.jar · 0.6 MB · for 1.21.1 · NeoForge

Download this release
789e09b0e7d4…
Older versions24
  • 2.4.12-1.20.122 May 20261.20.10.6 MB98dd684e9edb…Get
  • 2.4.1222 May 20261.21.10.6 MBa2671a492e8d…Get
  • 2.4.11-1.20.14 Mar 20261.20.10.6 MB8a5f7800319b…Get
  • 2.4.114 Mar 20261.21.10.6 MBa1fab3145636…Get
  • 2.4.1013 Dec 20251.21.10.6 MB7a14eda1dc83…Get
  • 2.4.10-1.20.113 Dec 20251.20.10.6 MB0d4fcfe1c355…Get
  • 2.4.9-1.20.114 Nov 20251.20.10.6 MB76f9fd9201fc…Get
  • 2.4.914 Nov 20251.21.10.6 MB82f3f82eeda2…Get
  • 2.4.819 Sept 20251.21.10.6 MB3c0abb86307c…Get
  • 2.4.8-1.20.119 Sept 20251.20.10.6 MB49e59cb57bff…Get
  • 2.4.7.1-1.20.124 Aug 20251.20.10.6 MB48416221664c…Get
  • 2.4.6.1-1.20.117 Jul 20251.20.10.6 MB18ecd7271870…Get
  • 2.4.73 Jul 20251.21.10.6 MBd4dbe95f5e4c…Get
  • 2.4.6-1.20.113 Jun 20251.20.10.6 MB9b889e35f201…Get
  • 2.4.611 Jun 20251.21.10.6 MB4a0119ec3a1f…Get
  • 2.4.57 Jun 20251.21.10.6 MB64338c5365c5…Get
  • 2.4.4-1.20.13 Jun 20251.20.10.6 MBee429a55bee7…Get
  • 2.4.431 May 20251.21.10.6 MB95d0826a45c0…Get
  • 2.4.318 May 20251.21.10.6 MB13f7e1795cc8…Get
  • 2.4.214 May 20251.21.10.6 MBd90bd5a634da…Get
  • 2.4.19 May 20251.21.5, 1.21.4, 1.21.3, 1.21.2, 1.21.10.6 MB7ec7538794fe…Get
  • 2.4.05 May 20251.21.10.5 MB2cfab9c292d8…Get
  • 2.3.727 Apr 20251.21.10.5 MBd5223267a323…Get
  • 2.3.7-1.20.126 Apr 20251.20.10.5 MB504c204229d7…Get

Frequently asked

Does Cognition work on Minecraft 1.21.5?

Yes. 1.21.5 is the newest Minecraft version Cognition 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 Cognition support?

Everything the author has declared, from 1.18.1 up to 1.21.5. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Cognition 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 Cognition 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 Cognition?

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.

What licence is Cognition 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 Cognition?

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 Cognition 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. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)Collective🎓 Collective is a shared library with common code for all of Serilum's mods.

Details from Modrinth, where the author last updated it on 10 Jul 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .