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Installation Configuration

Name: Kable Launcher
Rating: 4.8 (150 reviews)
Author: LuckyLuuk_ (Luuk Kablan)

Fine-tune every aspect of how Minecraft runs for each installation. All settings are per-installation and don't affect others.

Configuration	Description	Example Values
Game Directory	Custom location for installation data. Leave empty to use global directory.	`D:\Games\MC-Modded`
JVM Memory (-Xms/-Xmx)	Minimum and maximum heap size for Java. Higher = better performance for modded.	2048MB min, 8192MB max
Custom JVM Arguments	Advanced Java flags for GC tuning, performance, and debugging.	`-XX:+UseG1GC`
Window Resolution	Default game window dimensions on launch.	1920x1080, 2560x1440
Java Version	Specific Java executable path. Auto-detect finds best match.	`C:\Java\jdk-25`
Mod Loader Version	Pin specific Fabric/Forge version for stability.	Fabric 0.15.3, Forge 49.0.3

Allocating too much RAM (over 12GB) can actually hurt performance due to garbage collection pauses. 4-8GB is ideal for most modpacks.