This is fairly old, but I'm going to add my stuff as well. At first I thought this wouldn't be very hard as I don't play much, but thinking about it, I got more than 5 games I'd ultimately want to play. Anyway, here are my top 5 choices:
- C&C Generals - Zero Hour (the real time combat strategy game with great graphics and sounds)
- Gran Turismo 4 (PS2) (best driving game of all time for me personally (referring to the GT series in common here))
- History Line (hugely old WW1 strategy DOS-game based on "Battle Isle", great time-waster)
- FarCry (great ego-shooter with superb graphics and physics)
- Rainbow 6 - Raven Shield (excellent ego-shooter strategy game with SWAT-teams)
Other games that fell out:
- Max Payne I + II
- NFS Porsche
- IL-2 Sturmovik - Forgotten Battles
- several Delta Force games
- Silent Hunter III