I am going to pass on Serious Sam BFE at $9.99 as I got tired just watching the promo reels. Too too too frenetic and splashy bloody.
Orion: Dino Horde for $.99 gets a recommended SALE BUY as a late Beta game, it is fairly solid now and it will roll up into a ????? rated game with a different name in the next six months or so.
Why buy the Beta? (other than it is on sale at the price of a can of soda, how could you NOT buy it?)
Just sit on it and it auto updates into the full released game over time. Plus you get any extra level packs that come out for free too, there are perks to being a beta tester, you know.
Dino Horde is getting great reviews for the only game people know about where you can hunt dinosaurs, hunt the other soldiers/players, use a light sabre on them or a gun or a walker or a tank or a plane or a helicopter or a jet pack to fly up and land on the big sucker's back and have at its spine with your belt knife.
The game is getting good re-playability ratings, since it is totally unscripted and is just a huge open play area with waves of feisty Dino's to kill. And it gets really interesting when some on-line SOB gets into one of the fortifications and starts shooting the other players .... or you get a really good really well hidden sniper dude who only shoots sporadically -- and only at people.
"FIND that son of a biatch, he's gonna recycle all of us unless we find him ...."
"Hell with it, go back and re-arm with flame throwers and toast every piece of cover until you flush him."
20-30 people suddenly find a reason to cooperate with each other instead of hunting each other. Detente, what a wonderful idea.