Mythruna (myth + rune + a) is a game under development attempting to combine serious role-playing elements with an endless, living, and completely modifiable randomly generated sandbox world.
License: Free
Mythruna focuses on creative building and a unique voxel-based world generation, catering to players who enjoy in-depth crafting and resource management. In contrast, Terasology offers advanced graphics, robust multiplayer support, and a variety of gameplay modes, making it suitable for those seeking a more visually appealing and socially interactive experience.