Conquer the Islands

Sail with the arrow keys or WASD. You are shielded until you first move. A red arrow points at the strongest player when that is not you. The menu lets you save your island for later. Soldiers fire at islands within a few tiles, and cross to invade one you touch. Pick up the floating boxes and barrels for XP. Islands get stronger toward the middle of the map, and pay far more. A small island can slip between two rocks; a large one has to go round. XP takes your island up to level 50. Levels give points, to spend with the keys 1 to 5 on your barracks, turrets and soldiers, and make room for buildings of your choice, with the keys 6 to 8.