Build with Cubes

Build with Cubes is a free building and construction simulator that lets you create anything from simple houses to massive cities using a variety of blocks. Unlike survival games, you don't need to spend time mining or crafting materials—simply open your inventory and start building. Whether you want to create a floating sky island, a complex maze, or 3D pixel art of your favorite characters from FNAF or Undertale, the tools are at your fingertips.

To help you build more efficiently, the game features a powerful Symmetry Mode. This allows you to mirror your placements 2 or 4 times, making it easy to create perfectly balanced architecture. You can also toggle Fly Mode to inspect your work from any angle or place blocks at incredible distances without moving your character. The library includes over 100 unique objects, including Minecraft-style blocks, natural textures, windows, doors, and even physics-based objects like cars and elevators.

Sharing and saving is a core part of the experience. You can save your projects to local slots for later editing or publish them to the public gallery. For Minecraft players, the game provides a unique advantage: you can download .NBT files of your creations or view layered schematics to rebuild your designs block-by-block in other environments.