Block Craft 3D is a freemium mobile building game focused on open-world creation and exploration. Players gather resources to construct buildings, furniture, and entire towns block by block in a procedurally generated voxel-based world. The core loop involves mining, crafting, and placing blocks in a style reminiscent of classic sandbox builders.

The game includes survival elements where players manage their character's needs and defend against nocturnal creatures. It also features a social component, allowing users to visit and rate other players' publicly shared creations directly from their mobile device. Gameplay is controlled entirely through a touchscreen interface optimized for smartphones and tablets.