9. Red Dead Undead
I like westerns... I like zombies... so I loved Undead Nightmare! While Red Dead Redemption was a serious story about a man's attempt to change and come to terms with his past, this is an unapologetic homage to B-Movie horror flicks - complete with creepy landscapes, spooky music and schlocky storyline. There is a nice variety of zombie for you to shoot away at - from your shuffler to ones that ooze venom - and perhaps one of the coolest aspects of this game is that the virus spreads in real-time, so if you see a homesteader bitten then you don't want to be turning your back on him. This standalone campaign takes about six hours to complete, so you definitely get your money's worth.