• WASD to move
• Right mouse butto to aim
• Left mouse butto to spaw fort part or shoot
• E to cacel buildig or to pick-up a weapo
• 1,2,3,4 to switch a weapo
• 5,6, or 7 to build a structure
• Space bar to jump
• L or Escape to toggle mouse cursor lock

Fort Builder is a great simulation game where you can build forts and train yourself with different weapons. You have at your disposal three structure options, various weapons and projectiles to use, you have complete freedom to use your imagination and build the most amazing fort.

For iOS:
Safari on iOS 8 and later supports WebGL 1.0, and on iOS 15 and later supports WebGL 2.0.

For Android：
Nearly all of them support WebGL