Roughly Enough IDs
by TFF
Roughly Enough IDs lifts the registration caps on blocks, items, biomes, potions and enchantments in Minecraft 1.12.2 Forge, so modded worlds can hold more content.
What it does
Vanilla 1.12.2 limits how many entries each registry can hold, and modpacks with large content lists reach those limits quickly. This mod lifts them by adopting a wider ID format while keeping the chunk format of the later versions. Items, blocks and biome IDs can grow well beyond the default ranges, and it does not rely on a separate ID-remapping step at startup.
Installation needs MixinBooter, which is required for the mod to load. Roughly Enough IDs is a client and server mod, so the server and every player need it. It is released under the MIT License and is open source, with the source code, issue tracker and wiki publicly available. Files are published for Forge 1.12.2 only, and the latest build is 2.3.1, released on 2026-05-03.
Key features
Expanded ID ranges
Blocks, items, biomes, potions and enchantments can use IDs beyond the original 1.12.2 limits.
Infinitely tall and large worlds
The format allows both infinitely tall worlds and infinitely large item, block and biome ID sets.
Worlds stay intact on removal
Removing the mod later does not corrupt worlds created with it, although the ID changes can break items in those worlds.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Optional 14
Show 8 more
Tropicraft, CubicChunks, Bookshelf, Mystcraft, Wyrms of Nyrus, JourneyMap, Geographicraft, Nature's Compass
Required by 9 mods
Use cases
Large modpacks
Packs that register many blocks and items can use the expanded ranges without hitting the vanilla caps.
Dimension mods
Dimension packs that add biomes and blocks depend on this mod for their registrations, and nine catalog mods require it.
Who it’s for: Modpack authors and server owners running 1.12.2 Forge packs that need more IDs than vanilla provides, and players who join those servers.
Questions
Does Roughly Enough IDs need MixinBooter?
Must the server and players both install it?
Does it work with worlds made with NotEnoughIDs?
More from TFF
What the author says
Roughly Enough IDs is a fork of JustEnoughIDs to maintain compatibility for additional mods. Roughly Enough IDs is a lightweight mod that removes the block, item, biome, potion, and enchantment ID limits by using the 1.13 chunk format in 1.12.
Official listing
- Modrinth page
- modrinth.com/mod/reid
- Owner
- TFF
- Published
- 2023-05-07
- Updated on Modrinth
- 2026-05-03
- Facts verified
- 2026-10-15
