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 offers a unique voxel-based sandbox experience with an emphasis on building and modding, while Terraria provides a polished 2D action-adventure experience with extensive crafting, exploration, and multiplayer support. Both games cater to creative players, but they differ significantly in visual style and gameplay mechanics.