Terasology
Terasology is an open-source, voxel-based game engine and platform. It is developed in Java and designed to be highly extensible and moddable. The core engine provides fundamental mechanics for creating voxel worlds, including terrain generation, block manipulation, and physics. It aims to be a versatile framework for game developers to build a wide variety of games, from survival and exploration titles to more complex simulations and role-playing experiences.
The project emphasizes community contributions and encourages developers to create new game modules, content, and features.
Key aspects of Terasology include its block-based world representation, which allows for detailed and destructible environments.