ModsFinder

FixCreateSimulatedRope

by Lin928rain

FixCreateSimulatedRope is a NeoForge utility that stops the Rope Connector from crashing the game client, and it is needed while the Create Simulated mod has that bug.

NeoForgeClient-side onlyMIT LicenseOpen source1.21.1

What it does

The mod is a temporary hotfix for a crash caused by the Rope Connector block in Create Simulated. A Mixin injects a client-side check at the start of the affected method, so the logic that would run on the server is skipped. Players on the client no longer hit the crash when they use that block.

Only the client needs the mod; servers run without it. Create Aeronautics is required and must be installed alongside. The mod is published for NeoForge only, with a single file for 1.21.1, version 1.0.0, dated 2026-07-20. Its code is open source under the MIT License, and the source is public.

The author describes the mod as a stopgap. Once the official Create Simulated release contains the fix, the patch is no longer needed and can be removed.

Key features

  1. Client-side crash fix

    Prevents the Rope Connector from crashing the game client while Create Simulated still contains the bug.

  2. Temporary hotfix

    Meant to be removed once an official Create Simulated update ships the fix, so it is not a permanent addition.

  3. Source code available

    The source is public under the MIT License, so the patch can be read and reused by other modders.

Compatibility

Latest build for each game version and loader.

1.21.11.0.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

Create AeronauticsBuild anything from airships to planes and cars!
Required

Use cases

Who it’s for: Players who use the Rope Connector from Create Simulated on NeoForge 1.21.1 and see the client crash. The mod is for that case only and adds no content of its own.

Questions

Does FixCreateSimulatedRope need Create Aeronautics?

Yes. Create Aeronautics is the required dependency, so it must be installed with this mod on NeoForge 1.21.1.

Does the server need FixCreateSimulatedRope?

No. Only the player's game needs it, and servers run without it.

Which loader and version does the mod support?

The mod is published for NeoForge only, for 1.21.1. No Fabric or Forge file is listed on the Modrinth page.

When can FixCreateSimulatedRope be removed?

The author says it is needed only until an official Create Simulated update contains the fix, after which the patch can be uninstalled.

In the catalog

FixCreateSimulatedRope is one of 8,499 Technology mods on ModsFinder, and one of 3,557 Technology mods for NeoForge. 32,366 mods support Minecraft 1.21.1.

Technology mods8,499NeoForge modsMods for 1.21.132,366

Similar mods

Create1.18.2 – 1.21.1Quark1.9.4 – 1.21.1GraveStone Mod1.19 – 26.3Create Big Cannons1.18.2 – 1.21.1GD656Killicon1.18.2 – 1.21.4Create: Connected1.18.2 – 1.21.1

What the author says

When playing on a multiplayer server, the game crashes immediately when the player's crosshair is aimed at a Rope Connector that is part of a physicalized structure and has ropes connected to it. The RopeStrandHolderBehavior.addServerStrand() method in Create: Aeronautics 1.3.0 is executed on the client side as well…
Lin928rain, on the Modrinth page

Official listing

Owner
Lin928rain
Published
2026-07-20
Updated on Modrinth
2026-07-20
Facts verified
2026-10-15

Tags

TechnologyUtility
Open on ModrinthCompare