GoodPlanCraftLauncher

Project Overview

GPCL (GoodPlanCraftLauncher) is a lightweight Minecraft launcher developed by CaelLab for Windows. It supports both offline and premium login and includes full automatic version management, so a button click downloads, installs, and switches versions. The launch flow is optimized and uses caching and native code compilation to shorten the wait before entering the game.

Lightweight, efficient, and open source, making launching clean and quick.

Key Features

• Dual login modes: offline and premium account login with free switching
• Smart version management: one-click download, install, and switch with automatic resolution of libraries and assets
• Fast launch engine: an optimized launch flow with multi-layer caching and native code compilation
• Mod loader support: full support for Forge, Fabric, and OptiFine
• Java runtime management: detects and fills in Java, with a customizable mirror source
• Download center: categorized releases, snapshots, Beta, and Alpha versions
• Settings panel: grouped game, download, appearance, and advanced settings plus about info
• Theme adaptation: light and dark modes that follow the system preference
• Automatic maintenance: update checks and configurable log cleanup

Target Audience

• Windows users who want a lightweight launcher
• Modded players using Forge, Fabric, or OptiFine
• Players who need both offline and premium login
• Users who care about launch speed and resource use

Quick Start

1. Download the latest installer from Releases
2. Run the installer to deploy; first launch initializes the configuration automatically
3. On the login screen choose offline mode or sign in with a premium account
4. Open version management, pick a release, snapshot, or test version, and download it
5. Adjust memory allocation, Java path, mirror source, and theme in the settings panel
6. Return to the home screen and click start to enter the game

Core Advantages

• Faster launches: an optimized flow with caching noticeably shortens the wait
• Lower footprint: the launcher itself uses very few resources
• Simple to use: one-click version install with no manual dependency handling
• Clean interface: light and dark follow the system, with well-organized settings

System Requirements

Item	Requirement
OS	Windows 10 64-bit (1709+) and Windows 11
Disk space	At least 90 MB free for the launcher (excluding the game)
Memory	2GB+ available recommended
Java runtime	Auto-filled by the launcher; clean up conflicting Java installs

Notes

• Only Windows 10/11 64-bit is currently supported; macOS and Linux are not
• Manually clean up redundant or conflicting Java installs to avoid issues
• Downloading versions needs network access; switch the mirror source if the network misbehaves
• Redistributing modified versions must follow the license's attribution and ShareAlike terms