With the release of Serious Sam 3: BFE in October, three indie games have been in development and have been released prior to Serious Sam 3. Serious Sam: Kamikaze Attack! is one of the said indie games, released on September 15th 2011, for iOS and Android mobile devices.
I have no clue what is happening. Obviously upon the clarification that Duke Nukem Forever will be release the gods opened the heavens and said let there be dumb shooter. Bulletstorm has been garnering generally positive reviews and Duke Nukem is coming out in May. Along with these two shooter we have the announcement of a third in the form of Serious Sam 3. Serious Sam is modeled to play after the older style shooters such as Doom or Duke Nukem having you move fast, shoot fast, and your enemies take bullets like a pro. No detals on the release but you can check out all of the screenshots over at Giantbomb.