Bestest PC Games Ever

Working on Wii for the last three years has left me a bit behind the times with more "next gen" gaming. Consequently, I've been catching up on recent games that have attained high scores on Metacritic for PC:

1. Half-Life 2 (2004) - 96 points
2. Out of the Park Baseball 2007 (2007) - 96 points
3. Orange Box, The (2007) - 96 points
4. Half-Life (1998) - 96 points
5. BioShock (2007) - 96 points
6. Baldur's Gate II: Shadows of Amn (2000) - 95 points
7. Command & Conquer (1995) - 94 points
8. Mass Effect 2 (2010) - 94 points
9. Grand Theft Auto: Vice City (2003) - 94 points
10. Civilization II (1996) - 94 points

The only two that grabbed my attention that I hadn't already played were BioShock and Mass Effect 2. Interestingly, both games have two incarnations:

• BioShock (2007) - 96 points
• BioShock 2 (2010) - 88 points

• Mass Effect (2008) - 89 points
• Mass Effect 2 (2010) - 94 points

Had BioShock really gone downhill with its second incarnation, whilst Mass Effect improved? I decided to play all four games...