Deep Sea Hunter
Description
Go underwater, and hunt sea creatures. Collect treasure, and use it to buy upgrades. Go deeper.
Your submarine is controlled with the mouse. By clicking, it will move in a direction. If any enemies are within sonar range, a missile will be fired at them automatically. Upgrades include missile damage, missile speed, sonar range, submarine speed, submarine armor, fuel capacity, treasure collection range, and extra treasure.
After defeating a sea creature once, it will be added to a Bestiary. There are also achievements.