Click on the empty tiles to the left to construct buildings, use them to defend your base from enemy and to produce units to attack them. All structures are upgradeable, which makes either them or units they produce more powerful.
One of the best turn based strategy games. Spies, Diplomacy, Propaganda, or an all-out war with aircraft carriers and submarines. You decide. Play at 3 different difficulties and against 1,2,3 or 4 opponents.
Your objective is to shoot the bad guys as accurately as possible. You can aim for the head or the body area. The closer you are to the center of each of these areas the more points you gain. The trick is to make every single shot count.