Minecraft/Minecraft Mods/Radium / Lithium

MOD FAMILY

Radium / Lithium

Game-logic optimization: Lithium upstream and separate Radium Forge ports and continuations.

PerformanceServer-utility

Also known as Radium Re-Reforged, Radium Reforged

Version overview

An available build does not imply feature parity.

Radium / Lithium version support
Project	1.20.1 · Forge	1.21.1 · NeoForge	1.7.10 · Forge	1.12.2 · Forge
Radium Re-Reforged	Released Unknown maintenance	Unknown Unknown maintenance	Unknown Unknown maintenance	Unknown Unknown maintenance
Radium	Released Unknown maintenance	Released Unknown maintenance	Unknown Unknown maintenance	Unknown Unknown maintenance
Lithium	Unknown Unknown maintenance	Released Unknown maintenance	Unknown Unknown maintenance	Unknown Unknown maintenance

Projects in this family

3 distinct projects

PROJECT

Radium Re-Reforged

Maintained Forge continuation of Radium Reforged with bug fixes and a documented exception to upstream optimization parity.

CurseForge ↗

Support & releases

1.20.1 · ForgeReleased

Maintenance: Unknown · Checked 2026-10-22

A downloadable build is listed for this Minecraft version/loader. Exact mod-release version not stored; feature parity and branch maintenance unverified.

Source: radium-re-reforged-official

1.21.1 · NeoForgeUnknown

Maintenance: Unknown

1.7.10 · ForgeUnknown

Maintenance: Unknown

1.12.2 · ForgeUnknown

Maintenance: Unknown

Related projects

Fork Radium All versions

Continuation of Radium Reforged for Forge 1.20.1.

Source: radium-re-reforged-fork-radium

Incompatibility Radium 1.20.1 · Forge

Do not install alongside original Radium: both use the same mod ID. This is a mutually exclusive replacement, not an additional optimization layer.

Source: radium-re-reforged-incompatibility-radium-1-20-1

PROJECT

Radium

Radium is an Unofficial Fork of CaffeineMC's "Lithium", made to work with Forge Mod Loader.

Modrinth ↗

Support & releases

1.20.1 · ForgeReleased

Maintenance: Unknown · Checked 2026-10-23

Availability verified from exact version/loader release metadata. Maintenance and cross-branch feature parity remain unverified.

Source: radium-1-20-1-forge Source: radium-1-20-1-forge-20261023

1.21.1 · NeoForgeReleased

Maintenance: Unknown · Checked 2026-10-22

Availability verified from exact version/loader release metadata. Maintenance and cross-branch feature parity remain unverified.

Source: radium-1-21-1-neoforge

1.7.10 · ForgeUnknown

Maintenance: Unknown · Checked 2026-10-22

No matching release verified in this platform listing. Other distribution channels were not ruled out; availability remains unknown.

1.12.2 · ForgeUnknown

Maintenance: Unknown · Checked 2026-10-22

No matching release verified in this platform listing. Other distribution channels were not ruled out; availability remains unknown.

Related projects

Fork Lithium All versions

Radium identifies itself as a Forge port of Lithium.

Source: radium-fork-lithium

PROJECT

Lithium

No-compromises game logic optimization mod, useful for both single-player games and multi-player servers.

Modrinth ↗CurseForge ↗

Support & releases

1.20.1 · ForgeUnknown

Maintenance: Unknown · Checked 2026-10-22

No matching release verified in this platform listing. Other distribution channels were not ruled out; availability remains unknown.

1.21.1 · NeoForgeReleased

Maintenance: Unknown · Checked 2026-10-23

Availability verified from exact version/loader release metadata. Maintenance and cross-branch feature parity remain unverified.

Source: lithium-1-21-1-neoforge Source: lithium-1-21-1-neoforge-20261023

1.7.10 · ForgeUnknown

Maintenance: Unknown · Checked 2026-10-22

No matching release verified in this platform listing. Other distribution channels were not ruled out; availability remains unknown.

1.12.2 · ForgeUnknown

Maintenance: Unknown · Checked 2026-10-22

No matching release verified in this platform listing. Other distribution channels were not ruled out; availability remains unknown.

26.1 · NeoForgeReleased

Maintenance: Unknown · Checked 2026-10-22

Availability verified from exact version/loader release metadata. Maintenance and cross-branch feature parity remain unverified.

Source: lithium-26-1-neoforge

26.1.1 · NeoForgeReleased

Maintenance: Unknown · Checked 2026-10-22

Availability verified from exact version/loader release metadata. Maintenance and cross-branch feature parity remain unverified.

Source: lithium-26-1-1-neoforge

26.1.2 · NeoForgeReleased

Maintenance: Unknown · Checked 2026-10-22

Availability verified from exact version/loader release metadata. Maintenance and cross-branch feature parity remain unverified.

Source: lithium-26-1-2-neoforge

26.2 · NeoForgeReleased

Maintenance: Unknown · Checked 2026-10-22

Availability verified from exact version/loader release metadata. Maintenance and cross-branch feature parity remain unverified.

Source: lithium-26-2-neoforge

26.3 · NeoForgeReleased

Maintenance: Unknown · Checked 2026-10-22

Availability verified from exact version/loader release metadata. Maintenance and cross-branch feature parity remain unverified.

Source: lithium-26-3-neoforge

BRANCH COMPARISONS

How do the versions compare?

Unknown parity

Radium · 1.20.1 · Forge

compared with Radium · 1.21.1 · NeoForge

Both exact targets have published builds. Feature equivalence and development priority have not been established; matching release names are insufficient evidence.

Checked 2026-10-22

PLAN YOUR MODPACK

Confirmed incompatibilities

Radium Re-Reforged + Radium

1.20.1 · Forge

Do not install alongside original Radium: both use the same mod ID. This is a mutually exclusive replacement, not an additional optimization layer.

radium-re-reforged incompatibility radium · Checked 2026-10-22

RESEARCH EVIDENCE

Sources & verification

Project purpose and published support

Maintained Forge continuation of Radium Reforged with bug fixes and a documented exception to upstream optimization parity. Official listing checked for explicit Minecraft version and loader labels.

https://www.curseforge.com/minecraft/mc-mods/radium-re-reforged ↗Checked 2026-10-22

Project identity and purpose

Radium is an Unofficial Fork of CaffeineMC's "Lithium", made to work with Forge Mod Loader.

https://modrinth.com/mod/radium ↗Checked 2026-10-22

Downloadable 1.20.1 FORGE build verified

The official project release index contains files explicitly tagged for this Minecraft version and loader. Exact mod-release versions are intentionally not stored.

https://api.modrinth.com/v2/project/2gvRmQXx/version?game_versions=%5B%221.20.1%22%5D&loaders=%5B%22forge%22%5D ↗Checked 2026-10-22

Downloadable 1.21.1 NEOFORGE build verified

The official project release index contains files explicitly tagged for this Minecraft version and loader. Exact mod-release versions are intentionally not stored.

https://api.modrinth.com/v2/project/2gvRmQXx/version?game_versions=%5B%221.21.1%22%5D&loaders=%5B%22neoforge%22%5D ↗Checked 2026-10-22

Project identity and purpose

No-compromises game logic optimization mod, useful for both single-player games and multi-player servers.

https://modrinth.com/mod/lithium ↗Checked 2026-10-22

Downloadable 1.21.1 NEOFORGE build verified

The official project release index contains files explicitly tagged for this Minecraft version and loader. Exact mod-release versions are intentionally not stored.

https://api.modrinth.com/v2/project/gvQqBUqZ/version?game_versions=%5B%221.21.1%22%5D&loaders=%5B%22neoforge%22%5D ↗Checked 2026-10-22

Downloadable 26.1 NEOFORGE build verified

The official project release index contains files explicitly tagged for this Minecraft version and loader. Exact mod-release versions are intentionally not stored.

https://api.modrinth.com/v2/project/gvQqBUqZ/version?game_versions=%5B%2226.1%22%5D&loaders=%5B%22neoforge%22%5D ↗Checked 2026-10-22

Downloadable 26.1.1 NEOFORGE build verified

The official project release index contains files explicitly tagged for this Minecraft version and loader. Exact mod-release versions are intentionally not stored.

https://api.modrinth.com/v2/project/gvQqBUqZ/version?game_versions=%5B%2226.1.1%22%5D&loaders=%5B%22neoforge%22%5D ↗Checked 2026-10-22

Downloadable 26.1.2 NEOFORGE build verified

The official project release index contains files explicitly tagged for this Minecraft version and loader. Exact mod-release versions are intentionally not stored.

https://api.modrinth.com/v2/project/gvQqBUqZ/version?game_versions=%5B%2226.1.2%22%5D&loaders=%5B%22neoforge%22%5D ↗Checked 2026-10-22

Downloadable 26.2 NEOFORGE build verified

The official project release index contains files explicitly tagged for this Minecraft version and loader. Exact mod-release versions are intentionally not stored.

https://api.modrinth.com/v2/project/gvQqBUqZ/version?game_versions=%5B%2226.2%22%5D&loaders=%5B%22neoforge%22%5D ↗Checked 2026-10-22

Downloadable 26.3 NEOFORGE build verified

The official project release index contains files explicitly tagged for this Minecraft version and loader. Exact mod-release versions are intentionally not stored.

https://api.modrinth.com/v2/project/gvQqBUqZ/version?game_versions=%5B%2226.3%22%5D&loaders=%5B%22neoforge%22%5D ↗Checked 2026-10-22

radium-re-reforged fork radium

Continuation of Radium Reforged for Forge 1.20.1.

https://www.curseforge.com/minecraft/mc-mods/radium-re-reforged ↗Checked 2026-10-22

radium-re-reforged incompatibility radium

Do not install alongside original Radium: both use the same mod ID. This is a mutually exclusive replacement, not an additional optimization layer.

https://www.curseforge.com/minecraft/mc-mods/radium-re-reforged ↗Checked 2026-10-22

radium fork lithium

Radium identifies itself as a Forge port of Lithium.

https://modrinth.com/mod/radium ↗Checked 2026-10-22

Uncertain — needs review

Research limits

Platform links and dated sources are recorded. Missing platform listings, unverified dependencies, maintenance, parity, and future 27.x support are not assertions of absence. Exact mod-release versions are intentionally omitted.

https://modrinth.com/ ↗Checked 2026-10-22

Downloadable 1.20.1 FORGE build verified

The project release index contains downloadable files explicitly tagged with this exact Minecraft version and loader. This verifies availability only; maintenance, feature parity and compatibility are not established.

https://api.modrinth.com/v2/project/2gvRmQXx/version?game_versions=%5B%221.20.1%22%5D&loaders=%5B%22forge%22%5D ↗Checked 2026-10-23

Downloadable 1.21.1 NEOFORGE build verified

https://api.modrinth.com/v2/project/gvQqBUqZ/version?game_versions=%5B%221.21.1%22%5D&loaders=%5B%22neoforge%22%5D ↗Checked 2026-10-23