Fort Builder Sandbox

Build a fort, move around it, and use weapons and projectiles in a free-form three-dimensional sandbox. You have three structure options along with several weapons, giving you room to arrange defenses and experiment with your own fort design.

The game combines construction with direct action. You can place fort parts, aim and shoot, pick up weapons, and switch between them while moving through the scene. Jumping and canceling a building action help you manage the space around your creation.

Use WASD to move and the right mouse button to aim.

Use the left mouse button to place a fort part or fire a weapon.

Press E to cancel building or pick up a weapon.

Use keys 1 through 4 for weapons, 5 through 7 for structures, and Space to jump.