A voxel engine renders 3D worlds made of cube-shaped volume elements, similar to Minecraft. Building one teaches you about 3D rendering, chunk-based world management, mesh generation, and real-time graphics optimisation.
Voxel engines are a fascinating intersection of computer graphics and game development. By building one, you will tackle challenges like efficient geometry generation, level-of-detail rendering, procedural terrain generation, and managing large worlds within memory and performance constraints.