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SPECIFICTION
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Alternate Current

github.com

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Spec score 7.9 #5 of 24 in Minecraft Performance Mods

What it is

Alternate Current is a free, MIT-licensed mod for Minecraft: Java Edition that changes how redstone dust calculates power and updates blocks. It builds networks from connected wires and spreads power from wires receiving power outside a network. The project says this makes updates deterministic and less dependent on location, while retaining high Vanilla parity.

The mod focuses on reducing server work. Its README says redstone dust contributes up to 20 times less MSPT with Alternate Current, and that network-level optimizations can reduce updates by up to 20%. Listed Minecraft versions include 1.14 through 1.21.11, with some specific releases also listed; supported versions and loaders vary by release. Modrinth lists Fabric, Forge, NeoForge, Ornithe and Quilt, and server-side and singleplayer environments. The project links to its source repository, issue reporting and a Discord server. Its GitHub repository has no detected security policy and no published security advisories.

Spec sheet

Purpose
Alternate Current is an efficient, non-locational redstone dust implementation that reduces lag by optimizing power calculations and block and shape updates.Read 3 Oct 2026 · github.com
Security
The GitHub repository has no detected security policy and no published security advisories.Read 3 Oct 2026 · github.com
License
The project is licensed under MIT.Read 3 Oct 2026 · modrinth.com
Compatibility limits
Available Minecraft versions and loaders vary by release; CurseForge lists version-specific files for Fabric, Quilt, NeoForge, and Forge.Read 3 Oct 2026 · curseforge.com
Distribution
Modrinth links to the source repository, issue reporting, and a Discord server.Read 3 Oct 2026 · modrinth.com
Loaders
Modrinth lists Fabric, Forge, NeoForge, Ornithe, and Quilt as supported platforms.Read 3 Oct 2026 · modrinth.com
Network calculation
It builds networks of connected wires and spreads power from wires receiving power from outside the network.Read 3 Oct 2026 · github.com
Performance
The README says redstone dust contributes up to 20 times less MSPT with Alternate Current while maintaining high Vanilla parity.Read 3 Oct 2026 · github.com
Predictable updates
The mod makes redstone network block updates deterministic and less dependent on location.Read 3 Oct 2026 · github.com
Reduced updates
The README says each wire emits 24 block updates and 6 shape updates when its power changes, and network-level optimizations can reduce updates by up to 20%.Read 3 Oct 2026 · github.com
Runtime
Modrinth lists server-side and singleplayer as supported environments.Read 3 Oct 2026 · modrinth.com
Supported game
The project supports Minecraft: Java Edition, with listed versions spanning 26.3 through early Minecraft releases.Read 3 Oct 2026 · modrinth.com

Plans and prices

Alternate Current Free MIT licensed Minecraft mod Read 3 Oct 2026 · modrinth.com

Every Alternate Current plan and price →

Strong points and limits

Strong points

  • Free and MIT licensed.
  • Targets redstone-related server lag.
  • Listed for server-side and singleplayer environments.
  • Supports several listed mod loaders.

Limits

  • Minecraft version and loader support vary by release.
  • GitHub repository has no detected security policy.
  • No published security advisories are listed.

Who it suits

Alternate Current suits Minecraft: Java Edition players or server operators seeking a different redstone update implementation. Check the specific game version and loader against the release you plan to use.

Verdict

Alternate Current focuses narrowly on redstone power calculations and updates, with performance claims stated by the project. Confirm version and loader compatibility for the specific release you need.

Where Specifiction places it

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