1. System Shock 2
2. Deus Ex
3. Defense Grid: The Awakening
4. Half-Life
5. The Elder Scrolls: Oblivion (well, i can't decide between Oblivion and Morrowind)
2. Deus Ex
3. Defense Grid: The Awakening
4. Half-Life
5. The Elder Scrolls: Oblivion (well, i can't decide between Oblivion and Morrowind)