Summary: I am a long time fan of Duke Nukem and Doom as well as other classic games and while this is no Doom i will say it is a classic in my book. Any game that is fun to play and has a semi interesting story is awesome in my opinion.
Summary: This is a fun game. If you just want to shoot things, and not have to read a 100+ page manual then this is a game for you. If you don't want to spend 30 minutes going through story, and figuring out controls, then this is a good game.
Summary: This game got some pretty bad reviews, but personally I enjoyed it all the way though. Every weapon in this game is awesome and fun to shoot (exactly what an FPS should be like (My personal favorite is the Sunbeam which shoots sunshine and happiness.
Summary: This game was a unique experience into the simple fps genre. Rather then the classic Judeo/Christian heaven hell story, or aliens, we are give a glimse into the world of dreams. It could have been better. But if you just want to kill time, this is a great time waster.
Summary: An incredible concept executed incredibly wrong. Even the great idea for this game could not make one ignore the outstandingly repetitive fighting of horde after horde of monsters using below-average FPS mechanics.