OpenComputers: Rebooted

OpenComputers: Rebooted is a port of OpenComputers to 1.21.1, with several new features, including integrated OpenScreens support.
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OpenComputers v1.9.3

File nameopencomputers-1.9.3.jar
Uploaded
Aug 3, 2026
Downloads
8
Size
15.3 MB
Mod Loaders
NeoForge
File ID
8567799
Type
R
Release
Supported game versions
  • 1.21.1

Curse Maven Snippet

NeoForge

implementation "curse.maven:opencomputers-rebooted-1634364:8567799"

Learn more about Curse Maven

What's new

New Features

  • Added three tiers of Solid State Drives.

    • SSDs provide 4 MB, 8 MB, and 16 MB of storage.
    • SSDs are faster, silent, and consume less power than equivalent hard drives.
    • Managed and unmanaged modes are supported.
    • Unmanaged SSDs do not incur mechanical seek delays.
    • Added formatting recipes, configuration options, tags, and documentation.
  • Added the Quad T2 Graphics Card.

    • Contains four independent Tier 2 GPUs in a single card slot.
    • Each GPU has its own component address.
    • Each GPU supports an 80×25 resolution, 16 colors, and three full-screen VRAM buffers.
    • The card consumes four component slots.
    • Added its recipe, model, tooltip, tags, and documentation.

Fixes

  • Fixed component persistence across world reloads.

    • Screens, keyboards, EEPROMs, upgrades, and other component state now persist correctly.
    • Robots resume functioning correctly after reloading a world.
  • Fixed robot rendering crashes caused by the obsolete ExtendedWorldRenderer implementation.

  • Restored historical loot disk / floppy registration behavior.

    • API-registered loot disks are once again added to registeredItems.
    • Removed the unnecessary server-side loot disk synchronization workaround.
    • Prevented OpenPrinter disks from being registered twice.
  • Fixed multiple recipes referencing invalid or outdated piston tags.

    • Electronics Assembler
    • Disassembler
    • Disk Drive
    • 3D Printer
    • Net Splitter
    • Card Containers
    • Inventory Upgrade
    • Other affected recipes using the same piston tag
  • Fixed native library handling.

    • Native libraries are now stored under opencomputers/natives.
    • Added cleanup of obsolete extracted native libraries.
  • Fixed release/mod metadata issues affecting packaged builds.

  • Fixed several stale version references left over from earlier port builds.

Integrations

  • Verified OpenComputers integration initialization for:

    • Create
    • ComputerCraft / CC:Tweaked
    • Mekanism
    • Minecraft
  • Added native OpenComputers support for Create's computer-controllable blocks.

    • Added support for kinetic components, train stations, train signals, track observers, display links, Nixie tubes, stickers, package logistics, and stock systems.
    • Create events are forwarded to connected computers as OpenComputers signals.
    • Added Lua conversion support for Create packages and package-address data.
    • Train stations support assembly control, station and train naming, schedules, route checks, and distance queries.
    • OpenComputers connections are recognized by Create's existing computer behavior system.

Additional Fixes and Improvements

  • Fixed robot persistence across world reloads.

    • Robots now retain their components and inventory correctly.
    • Fixed an issue that could cause robots to randomly lose installed items.
  • Integrated OpenPrinter directly into OpenComputers.

    • OpenPrinter functionality is now included as a native part of the mod.
    • Its disks and components are registered directly by OpenComputers.
    • Prevented OpenPrinter disks from being registered more than once.
  • Fixed numerous OpenComputers API regressions introduced by the previous port.

    • Restored historical API behavior where the port had introduced incompatible or unexpected changes.
    • Improved compatibility with software and integrations built against the established OpenComputers API.
  • Removed substantial amounts of unnecessary automated-porting cruft.

    • Removed redundant compatibility code, workarounds, and migration artifacts.
    • Simplified affected code paths to more closely match original OpenComputers behavior.

Rendering / Client

  • Tablets now render in the player’s hand while inactive.
    • Active tablets continue to display their running screen.
    • Offhand rendering still needs additional sizing and positioning adjustments.
    • Fixed robot rendering regression.
    • Continued cleanup of Hoverboots item rendering.
    • Verified tablet and machine rendering behavior after recent changes.

Configuration / Balance

  • Reworked proposed RAM defaults to avoid the excessively large 1.21.1 progression while remaining slightly more generous than legacy OpenComputers values.

  • Added configurable SSD read and write power costs.

    • SSDs consume half the default read and write power of hard disk drives.

Cleanup

  • Removed several unnecessary port-specific workarounds introduced during the 1.21.1 migration.
  • Restored original OpenComputers API behavior where newer port logic had caused regressions.

Full Changelog: https://github.com/CaitlynMainer/OpenComputers/compare/v1.9.0...v1.9.3

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