OpenComputers for Minecraft 1.21.1

OpenComputers: Rebooted brings persistent, modular, programmable computers to Minecraft—along with robots, drones, servers, microcontrollers, tablets, networking, and much more.

Build computers from individual components such as CPUs, memory, graphics cards, hard drives, and network cards. Install OpenOS, connect a screen and keyboard, then program your creations in Lua. Systems can be as simple as an automated redstone controller or as elaborate as a network of servers, robots, sensors, and machinery.

Whether you want to automate a base, write your own software, construct autonomous robots, or simply make a computer beep at you because you forgot the RAM, OpenComputers: Rebooted gives you the tools to build it.

Features

• Modular computers assembled from tiered components
• A complete Lua-programmable operating environment with OpenOS
• Screens, keyboards, filesystems, networking, and wireless communication
• Programmable robots and drones that can interact with the world
• Servers, racks, microcontrollers, and portable tablets
• Redstone control, motion sensors, geolyzers, adapters, and transposers
• Hologram projectors and programmable 3D printers
• Persistent computers that retain their state when chunks unload
• An extensive in-game manual covering hardware, software, and programming
• A Java API for integration with other mods
• OpenScreens integrated directly into the base mod (with permission)
• OpenPrinter integrated directly into the base mod

About This Port

This project is a community-maintained NeoForge port of the original OpenComputers mod for Minecraft 1.21.1.

The port remains under active development. Core gameplay is available, but some integrations and compatibility work are still incomplete. Back up important worlds before testing development releases.

Original project: https://github.com/MightyPirates/OpenComputers

Requirements

• Minecraft 1.21.1
• NeoForge 21.1 or newer
• Java 21
• ScalableCatsForce for NeoForge 3.3.3

Both OpenComputers: Rebooted and ScalableCatsForce must be installed in your mods folder.

Documentation and Support

The in-game manual is the best place to begin. The original OpenComputers wiki also remains useful for general gameplay and Lua API concepts, although some installation and integration information describes older Minecraft versions.

• Source code: https://github.com/CaitlynMainer/OpenComputers
• Issues: https://github.com/CaitlynMainer/OpenComputers/issues
• Original wiki: https://ocdoc.cil.li/
• Original project: https://github.com/MightyPirates/OpenComputers

Modpacks

OpenComputers: Rebooted may be included in modpacks. Please respect the license and attribution notices included with the mod.

Credits

OpenComputers was originally created by Florian “Sangar” Nücke and developed with contributions from Vexatos, payonel, magik6k, Lord Joda, and many other contributors.

This modern port is maintained by MichiyoRavencroft.