1.Prey 2.Titan Quest 3.God Of War 4.Rise & Fall:Civilization At War. 5.Counter-Strike

1.FEAR 2.Halo 2 3.GTA San Andreas 4.Half Life 2 5.World OF Warcraft

1.World OF Warcraft. 2.The Elder Scrolls IV:Oblivion. 3.Battlefield 2. 4.GTA San Andreas. 5.Age Of Empires II:Age of kings. Their all great games.Each of them have their own sets of fun and lengthy campaign.If I was stuck in an island i would pick those 5 games.