ModsFinder

ID_Relocator

by crategamesYT

ID_Relocator, a Forge library for Minecraft 1.7.10, lifts the entity ID limit that normally caps how many entities a modded game can register.

ForgeClient and serverMIT LicenseOpen source1.7.10

What it does

Vanilla Forge limits the Global Entity ID space to 255 or 256 entries, and that cap is a common source of registration errors when many mods are installed together. ID_Relocator resolves these conflicts by raising the maximum number of global entity registries to 32,767 through an ASM tweak applied to the Minecraft core.

Once the tweak is active, the utility assigns free slots to every registered entity automatically, so the engine can run more entities than the old limit allowed. Mod developers can use it to leave more entity indices free, which reduces the chance that a new entity causes an ID error. Players gain the same benefit when a large modpack loads without those conflicts.

The mod is published for Forge only, for the single game version 1.7.10. A server running it needs every connecting player to have it too. The code is open source under the MIT License, and the public link is for the source code.

Key features

  1. Raised entity ID ceiling

    The global entity registry limit is increased from 255 or 256 to 32,767 entries.

  2. ASM core tweak

    An ASM tweak applied to the Minecraft core makes the higher limit possible without changing vanilla entity data.

  3. Automatic slot assignment

    Every registered entity is given a free slot automatically, so developers do not need to manage IDs by hand.

  4. Fewer ID conflicts

    With more indices free, the engine can run many modded entities at once without the registration errors the old limit caused.

Compatibility

Latest build for each game version and loader.

1.7.101.0
ReleaseBetaAlphaNot available

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

Use cases

Large modpacks

Packs that combine many entity-adding mods can load without running into the vanilla ID cap.

Mod development

Developers working on entity-heavy mods have more free indices and fewer ID errors to troubleshoot.

Who it’s for: Modpack creators and mod developers working on Minecraft 1.7.10 with Forge, where the entity ID limit causes conflicts.

Questions

Does ID_Relocator need to be installed on the server?

Yes. It is a client and server mod, so the server and every player need it for the higher entity limit to apply.

Which loader and version does ID_Relocator support?

It is built for Forge and the single game version 1.7.10. No Fabric or other loader builds are listed.

Why does the entity ID limit cause errors?

Vanilla Forge caps global entity IDs at 255 or 256, so installing many entity mods can exhaust the free slots and trigger registration conflicts.

In the catalog

ID_Relocator is one of 3,514 Library mods on ModsFinder, and one of 1,576 Library mods for Forge. 1,013 mods support Minecraft 1.7.10.

Library mods3,514Forge modsMods for 1.7.101,013

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What the author says

ID Relocator is a high-performance tool that solves the most prevalent issue in Minecraft 1.7.10: the Global Entity ID limit. The default ID limit in Minecraft is 255; thus, if OreSpawn, Godzilla, and MLP is installed, the application will crash, and it will output an error message indicating that the specified…
crategamesYT, on the Modrinth page

Official listing

Owner
crategamesYT
Published
2026-05-11
Updated on Modrinth
2026-05-11
Facts verified
2026-10-15

Tags

Game mechanicsLibrary
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