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CS - Complementary StructuresMinecraft mod for 26.1

Small and big structures that are added to your world.

client and servernewest supported 26.1AdventureEquipmentWorldgenMagic
Latest version
1.5.1
Minecraft
1.18.2 to 26.1
Java
Java 25+
Loaders
NeoForge, Forge, Fabric
Licence
MIT
Downloads
3.7k
Updated
4 mo ago
Available on
Modrinth
Space NodePartner

Host CS - Complementary Structures servers

One click and CS - Complementary Structures is installed with the right loader, on hardware built for it.

  • 26.1
  • NeoForge
  • Forge
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version CS - Complementary Structures declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
26.1NeoForge, Forge, Fabric25+declared24 Mar 2026
1.21.11Fabric, NeoForge, Forge21+declared9 Dec 2025
1.21.10Forge, NeoForge, Fabric21+declared7 Oct 2025
1.21.9Forge, NeoForge, Fabric21+declared30 Sept 2025
1.21.8NeoForge, Forge, Fabric21+declared17 Jul 2025
1.21.7NeoForge, Forge, Fabric21+declared30 Jun 2025
1.21.6Fabric, NeoForge, Forge21+declared17 Jun 2025
1.21.5Forge, NeoForge, Fabric21+declared25 Mar 2025
1.21.4NeoForge, Fabric, Forge21+declared3 Dec 2024
1.21.3Forge, Fabric, NeoForge21+declared23 Oct 2024
1.21.1NeoForge, Forge, Fabric21+declared8 Aug 2024
1.20.1Fabric, NeoForge, Forge17+declared12 Jun 2023
1.20Forge, NeoForge, Fabric17+declared2 Jun 2023
1.19.4Forge, NeoForge, Fabric17+declared14 Mar 2023
1.19.3Forge, NeoForge, Fabric17+declared7 Dec 2022
1.19.2Forge, NeoForge, Fabric17+declared5 Aug 2022
1.19.1Forge, NeoForge, Fabric17+declared27 Jul 2022
1.19Forge, NeoForge, Fabric17+declared7 Jun 2022
1.18.2Forge, NeoForge, Fabric17+declared28 Feb 2022

Download

From CS - Complementary Structures’s own host. Nothing is re-hosted here.

1.5.1release29 Mar 2026

cs-1.5.1-neoforge_26.1.jar · 0.9 MB · for 26.1

Download latest
78d6d0ed5dc1…
Older versions7
  • 1.6.012 Mar 20261.20, 1.20.10.9 MB19 downloadsb49c32e740c0…Get
  • 1.4.513 Sept 20251.21.50.8 MB115 downloadscf7ce6b5da7b…Get
  • 1.4.327 Aug 20251.21.50.8 MB17 downloads134d969716e4…Get
  • 1.4.220 Aug 20251.21.50.8 MB19 downloads8239464c3e6a…Get
  • 1.4.113 Aug 20251.21.50.8 MB13 downloadsbd51e0374e1c…Get
  • 1.4.010 Aug 20251.21.50.8 MB14 downloads7e9858d5d25a…Get
  • 1.3.228 Jul 20251.21.50.7 MB10 downloads2e81bb60be0f…Get

Frequently asked

Does CS - Complementary Structures work on Minecraft 26.1?

Yes. 26.1 is the newest Minecraft version CS - Complementary Structures 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 CS - Complementary Structures support?

Everything the author has declared, from 1.18.2 up to 26.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install CS - Complementary Structures 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 loader does CS - Complementary Structures need?

NeoForge, Forge, Fabric. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for CS - Complementary Structures?

Java 25 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the mod itself.

What licence is CS - Complementary Structures 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 CS - Complementary Structures?

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 CS - Complementary Structures 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.

Entity CullingUsing async path-tracing to hide Block-/Entities that are not visibleFerriteCoreMemory usage optimizationsImmediatelyFastSpeed up immediate mode rendering in MinecraftYetAnotherConfigLib (YACL)A builder-based configuration library for Minecraft!Xaero's MinimapDisplays a map of the nearby world terrain, players, mobs, entities in the corner of your screen. Lets you create waypoints which help you find the locations you've marked.[ETF] Entity Texture FeaturesEmissive, Random & Custom texture support for entities in resourcepacks just like Optifine but for Fabric

Last checked 6 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .