HMCL is a cross-platform game client and launcher designed for installing and managing various versions of Minecraft. It functions as a game instance orchestrator that handles the downloading and deployment of specific software versions and loader tools.
The project acts as a mod pack manager, providing systems to import, export, and organize curated collections of game modifications. It supports a distribution workflow that allows game configurations to be synchronized across different launchers.
The software covers game instance management and the setup of custom game environments. This includes the ability to install specific game versions, manage mod packs, and maintain isolated directory trees for different installations to prevent configuration conflicts.