Onther EPIC first person shooter, for me it's a bit half-life. Dont know what to say more, here is the specs and gameplay video, you should try it 
Singularity Minimum System Requirements
CPU: Intel Pentium D (dual core) 2.8GHz or AMD Athlon X2 4800+ or better
RAM: 1 GB of RAM
VGA: 3D hardware accelerator card required - 100% DirectX 9.0c-compliant 256 MB video card and drivers* (ATI Radeon X1800, 256 RAM)
DX: DirectX 9.0c
OS: Windows XP/Vista/Windows 7 (Does not support Windows 2000)
HD
8 GB of uncompressed hard disk space (plus 400 MB for the Windows�® swap file and 12 KB free for saved games)
Singularity Recommended System Requirements
CPU: Intel Core2 Duo E8400 and or AMD Athlon 64 X2 6000+
RAM: 2 GB of RAM
VGA: NVIDIA GeForce 8800 GT, ATI Radeon HD 3850
[video=youtube]http://www.youtube.com/watch?v=50O3BxaQ-co[/video]
Singularity Minimum System Requirements
CPU: Intel Pentium D (dual core) 2.8GHz or AMD Athlon X2 4800+ or better
RAM: 1 GB of RAM
VGA: 3D hardware accelerator card required - 100% DirectX 9.0c-compliant 256 MB video card and drivers* (ATI Radeon X1800, 256 RAM)
DX: DirectX 9.0c
OS: Windows XP/Vista/Windows 7 (Does not support Windows 2000)
HD
8 GB of uncompressed hard disk space (plus 400 MB for the Windows�® swap file and 12 KB free for saved games)Singularity Recommended System Requirements
CPU: Intel Core2 Duo E8400 and or AMD Athlon 64 X2 6000+
RAM: 2 GB of RAM
VGA: NVIDIA GeForce 8800 GT, ATI Radeon HD 3850
[video=youtube]http://www.youtube.com/watch?v=50O3BxaQ-co[/video]
