ModsJava
Create Octo Arms Mod (1.21.1) – Scale Walls and Ceilings with Mechanical Arms
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
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Create Octo Arms Mod extends Create with wearable pneumatic tentacle rigs that walk along walls and ceilings. This addon mounts four mechanical arms onto a backtank to carry you across tricky surfaces while keeping your hands open for tools and weapons. It lets you crawl under ledges, scale sheer cliffs, and traverse underwater caves safely using stored air pressure.
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Features:
- Pneumatic Mobility: Four mechanical tentacles hold onto full block faces, ledges, and ceilings to carry you across uneven terrain.
- Hands-Free Movement: Your character moves toward your crosshair while leaving both hands free to mine, place blocks, or attack foes.
- Air-Powered Propulsion: The rig consumes air from your backtank, using minimal pressure while resting and more while climbing or moving quickly.
- Tiered Equipment: Craft the base copper version or upgrade to netherite for longer reach, fire resistance, and half the air consumption.
- Custom Enchantments: Upgrade your gear with Far Reach, Thrift, Swift, and Silent Step, alongside standard chestplate and capacity enchantments.
- Fail-Safe Protection: The mechanism lowers you slowly to the ground if your air tank empties and stops working at one durability rather than breaking.
- The gear works underwater without losing grip on submerged surfaces.
- Refill the air supply by standing under a spinning shaft like standard gear.
- The rig prevents falls by only stepping where at least two arms have a solid grip.
- Includes built-in Ponder scenes, custom tooltips, and JEI recipes.
- A settings menu lets you adjust standing height, movement speed, and activation controls.
How to Use:
- Equip the crafted rig into your chest armor slot.
- Press Space twice (double jump) to deploy the mechanical arms onto nearby surfaces.
- Look in the direction you want to travel to guide your movement across walls or ceilings.
- Press Space to climb upward or Shift to lower yourself toward the floor.
- Press Space twice again to retract the arms and land safely on solid ground.
Screenshots:








Create Octo Arms Mod Download Links
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Downloads as 538088.mcaddon
- Download size: 313 KB
- Download link checked 1 Nov 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.