



Each level in Fill 3D features a unique board shape, from basic grids to intricate 3D layouts. You need to plan your moves carefully to ensure every tile is covered exactly once.
Obstacles and tricky layouts keep you thinking ahead, and the game resets if you make a wrong move.
Unlike classic 2D puzzles, Fill 3D uses isometric boards that demand spatial reasoning. The game's simple, clean visuals make it easy to focus on strategy rather than distractions. As you progress, levels become more complex, introducing new obstacles and layouts, keeping the gameplay fresh.
Early levels serve as tutorials, but soon you'll face boards with tight spaces and more obstacles. Later stages test your ability to find the optimal path and avoid blocking yourself in. There's no timer, so you can think through each move for maximum efficiency.
Play Fill 3D for free in your browser—no downloads or installs required. It's accessible on most networks, including school and work, so you can jump in and solve puzzles anytime.
Your main goal in Fill 3D is to move the block and fill every tile on the board without leaving any spaces or hitting obstacles.
Use the arrow keys to navigate the block in four directions across the board. Each move paints the tiles you cross over.
Levels start off simple but soon introduce new shapes and obstacles, requiring you to think ahead before making each move. If you get stuck or miss a tile, you'll need to restart the level.
Some boards have tight spaces or tricky layouts—plan each route so you don't trap yourself. There's no time limit, so take your time to solve each puzzle.
Plan your route - Visualize your moves before starting to avoid getting trapped. Avoid corners last - Fill corner tiles at the end to prevent blocking your path. Watch for obstacles - Some levels add barriers that force you to reroute.
Restart quickly - Don’t hesitate to restart if you make a wrong move early. No rush - There’s no timer, so take your time with each puzzle.