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Contained Opolis (A Space Adventure)Minecraft modpack for 1.21.1

A space based skyblock style modpack

newest supported release 1.21.1MultiplayerQuestsSkyblockExploration
Latest version
Contained_Opolis-6.5.zip
Minecraft
1.21.1
Java
Java 21+
Loader
NeoForge
Licence
not stated
Downloads
194.7k
Updated
2 d ago
Available on
CurseForge
Space NodeOur hosting

Host Contained Opolis (A Space Adventure) servers

One click and Contained Opolis (A Space Adventure) is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • 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 Contained Opolis (A Space Adventure) declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge21+declared8 Aug 2024

Download

From Contained Opolis (A Space Adventure)’s own host. Nothing is re-hosted here.

Browse 35 indexed releases

Most recently published release

Contained_Opolis-6.5.ziprelease26 Oct 2026

Contained_Opolis-6.5.zip · 4.2 MB · for 1.21.1 · NeoForge

Download this release
7d476dc83d52…
Older versions24
  • Contained_Opolis-6.4.zip20 Oct 20261.21.14.2 MBf65d8396e585…Get
  • Contained_Opolis-6.3.zip8 Sept 20261.21.16.4 MB2d4b09599127…Get
  • Contained_Opolis-6.2.zip1 Sept 20261.21.14.2 MB22ecfdaeb1d0…Get
  • Contained_Opolis-6.1.zip31 Aug 20261.21.14.2 MB727003f30387…Get
  • Contained_Opolis-6.0.zip11 Aug 20261.21.14.1 MB6089f5359ff4…Get
  • Contained_Opolis-5.4.zip7 Aug 20261.21.14.0 MB4f7f72225f94…Get
  • Contained_Opolis-5.3.zip4 Aug 20261.21.14.0 MB46f7a21e0796…Get
  • Contained_Opolis-5.2.zip1 Aug 20261.21.13.9 MB8865548fe523…Get
  • Contained_Opolis-5.1.zip25 Jul 20261.21.13.9 MB2.2k downloadsa09659f3b71d…Get
  • Contained_Opolis-5.0.zip21 Jul 20261.21.13.9 MB1.7k downloads2f95904b6a24…Get
  • Contained_Opolis-4.1.zip12 Jul 20261.21.13.9 MB5.9k downloads9de958951d5f…Get
  • Contained_Opolis-4.0.zip26 Jun 20261.21.13.9 MB1.2k downloads71597db27e6b…Get
  • Contained_Opolis-3.9.zip9 Jun 20261.21.13.9 MBcd2b5c34123b…Get
  • Contained_3.8.zip5 Jun 20261.21.13.4 MB491 downloads86871dd102da…Get
  • Contained_3.7.zip21 Apr 20261.21.13.8 MB196 downloads68e4883514c0…Get
  • Contained_3.6.zip8 Apr 20261.21.13.8 MB1.1k downloads94390a32eb4c…Get
  • Contained 3.5.zip24 Feb 20261.21.13.8 MB3.2k downloadsf5574cb9c02c…Get
  • Contained 3.4.zip7 Feb 20261.21.14.2 MB247 downloads962f0c63f9db…Get
  • Contained 3.3.zip6 Feb 20261.21.15.7 MB226 downloads10e6cec1f371…Get
  • Contained 3.2.zip6 Feb 20261.21.15.7 MB89 downloads237ff76c1f8a…Get
  • Contained-3.1.zip2 Dec 20251.21.111.1 MB329 downloads0aed5fbe2fc5…Get
  • Contained-3.0.zip2 Dec 20251.21.111.1 MB8d32e57c0c8c…Get
  • Contained-2.0.zip4 Nov 20251.21.19.6 MB7.4k downloadsb1ddba1f21e0…Get
  • Contained-1.1.zip19 Oct 20251.21.17.7 MB7.5k downloads543f68605334…Get

Frequently asked

Does Contained Opolis (A Space Adventure) work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Contained Opolis (A Space Adventure) 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 platform or loader does Contained Opolis (A Space Adventure) support?

NeoForge. 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 Contained Opolis (A Space Adventure)?

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.

How do I install Contained Opolis (A Space Adventure)?

Use a launcher that imports packs, such as Prism Launcher, the Modrinth App or the CurseForge app, and open the pack file with it. The launcher installs the right loader and mods for you; installing a pack's mods by hand is the error-prone way.

Where do I download Contained Opolis (A Space Adventure) safely?

Start with the author's page on CurseForge, 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.

Re-ConsoleA continued Legacy Console Edition experience, expanded upon with modern Java Edition content and QoL! (An Official Legacy4J Project)MAX FPS: Optimized🚀 MAX FPS WITHOUT UNNECESSARY MODS! Only 16 optimization mods - NOTHING EXTRA! ✅ ALL MAJOR VERSIONS ⚡ INSTALLS ON ANY LAUNCHER! (Guide below)Simply Optimized ReloadedAn unofficial port of Simply Optimized built to support every major mod loader and stay current with the newest versions of Minecraft.PacktrixPre-packed Official Modpack containing Patrix Resource Pack for easy install using Fabric/Quilt.FPS+ PvP Boost | Ultimate FPS & Combat Client [ Every Version ]Ultra-lightweight FPS boost & PvP modpack for Fabric. Boost FPS on low-end PCs with Sodium optimizations, lower input lag, cleaner visuals, and combat HUD tweaks built for Hypixel Bedwars, Duels, PotPvP & CPVP. Maximize frames and dominate fights.香草精华 Vanilla EssenceFaithful to the origional. Better vanilla experience without any new blocks or mobs

Details from CurseForge, where the author last updated it on 5 Nov 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

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