Protect the Sky Fortress from all harm. Click the icon under the fortress to bring up the Arrow Select menu – doing so will pause the game. Choose the arrow type you require and click to select it. Collect points by killing enemies. Buy and level up unique and devastating weapons, combine them in any way you like to create your own custom powers, or deploy cunning, defensive upgrades.
You may see the message s3.digyourowngrave.com is requesting permission to store information on your computer. The storage space the game is requesting is for your save games. You can deny the request, however your save games may not work properly.