@Rionaa- Space Marine is worth it IMO. it's combat is simple and basic, but is very fun.
Let me re-post what I wrote in another thread:
YOU PLAY AS AN 8 FOOT TALL SPACE MARINE, WHO CUTS UP HORDES OF ORKS WITH A FRIGGIN' CHAINSAW SWORD, AND AN ASSORTMENT OF WMD GUNS! AND IF THE CHAINSAW SWORD ISN'T ENOUGH, YOU GET TO USE A FRIGGIN' BIG-ASS HAMMER AND CAN LAUNCH YOURSELF INTO THE AIR TO DELIVER DEATH FROM ABOVE ON DOZENS OF ORKS. YOUR SNIPER RIFLE AND SHOTGUN ARE EFFIN' LASER GUNS.
Cover? COVER IS FOR THE WEAK, YOU WANT TO RECOVER YOUR HEALTH YOU RUN UP TO THE UNLUCKY ORK IN VIEW, STUN THE SUMBITCH AND FRIGGIN' EXECUTE HIM! YOU KILL TO LIVE!