Sea Hunter is an interesting action game for free.

Publisher:	Siteken Games
Downloads:	1
Software Type:	Freeware, 0.00
File Size:	824K
OS:	Windows All
Update Date:	18 January, 2015

Dive into the harrowing depths of the deep sea and explore the underwater world. Develop your submarine that will help you explore deeper into the unknown. Discover long-lost creatures of the underwater world. Attack four mythical underwater bosses, hell-bent on sinking your submarine.