Alpha 0.0.1: Complete Rewrite
Lambda Client

The ultimate open-source Fabric utility mod. Experience autonomous building and a modern GUI designed for power users.

Y Open GUI
; Command Prefix
Download v0.0.2 1.21.5 GitHub Discord

Features

Automation Engine

Lambda can autonomously build structures. We use Litematica as an interface, while our building engine handles the complex orchestration, block states, and rotations.

Unmatched Performance

Optimized rendering pipelines using batched rendering for superfast ESP. Modern frameworks ensure speed and responsiveness.

Sophisticated UX

Fine-tune over 1000+ settings with the clean Dear ImGui interface. Use Automation Profiles to switch complex configs instantly.

Safety & Tools

Built with Grim Anticheat compatibility in mind. Includes the new HighwayTools, rewritten to use the powerful build engine for efficient maintenance.

Installation

  1. 1

    Minecraft 1.21.5

    Install the correct version via the official launcher.

  2. 2

    Fabric Loader

    Download and install the latest Fabric version.

  3. 3

    Get Lambda

    Download the .jar file from the button above.

  4. 4

    Launch

    Place in .minecraft/mods and start the game.