Command & Conquer 4 : Tiberian Twilight

Category : Strategy

Minimum System Requirement :
-OS : Windows XP SP3, Vista SP1, Win 7
-CPU : Intel Core 2 Duo or AMD Athlon 64 X2
-Memory : 1GB (XP), 1.5GB (Vista/Win 7)
-HDD : 10GB of free space
-VGA : 256MB DirectX 9.0 compliant card with Shader Model 3.0

Metro 2033

Category : First-Pesron Shooter
Rating : 80% (by gamespot.com)

Minimum System Requirement :
-CPU : Dual core CPU
-Memory : 1GB RAM
-HDD : 7.1GB of free space
-VGA : DirectX 9, Shader Model 3 compliant graphics cards (GeForce 8800, GeForce GT220)

Assassin's Creed 2

(have already passed DRM protection by Ubisoft...

100% guaranteed can play mission...
can play without internet connection)

Category : Third-Person Action/ Adventure
Rating : 80% (by gamespot)

Minimum System Requirement :
-OS : Windows XP, Vista or Win 7
-CPU : Intel Core 2 Duo 1.8GHz or AMD Athlon X2 64 2.4GHz
-Memory : 1.5GB RAM (XP), 2GB RAM (Vista/Win 7)
-HDD : 8GB of free space
-VGA : 256MB DirectX 9.0 compliant card with Shader Model 3.0

Battlefield : Bad Company 2

Category :First-Person Shooter
Rating : 90% (by gamespot.com)

Minimum System Requirements:
-OS : Windows XP/Vista/7
-CPU : Intel Core 2 Duo at 2.0 GHz
-Memory : 2GB RAM
-HDD : 8.3GB of free space
-VGA : 256MB VRAM (NVIDIA GeForce 7800GT / ATI X1900)

Screenshots from my PC :

Aliens vs Predator

(requires 32GB of free space during installation but

only 15GB is used after installation finished)

Minimum System Requirements:
-OS : Windows 7/ XP/Vista
-CPU : 3.2 GHz Intel Pentium 4/Athlon 64 3000+ or equivalent processor
-Memory : 1GB RAM (XP)/ 2GB RAM (Vista)
-HDD : 15GB of free space
-VGA : DirectX 9.0c compliant video card with 128MB RAM (NVIDIA 6600 or better, ATI X1600 or better)