Terraria is a 2D sandbox adventure game where players explore, build, and survive in a vast, procedurally generated world. Gameplay involves digging for resources, crafting tools and structures, and battling diverse enemies. The mobile version features a fully customizable touch interface with virtual joysticks and buttons for movement, building, and combat.

Players can construct elaborate bases, discover hidden biomes, and defeat powerful bosses to progress. The experience is largely open-ended, supporting both creative construction and challenging combat. The mobile version includes content and features specific to the platform, offering a complete and portable Terraria experience.