Counter-Strike 1.5 is MOD for Half-Life that is set in a teamplay mode.As a terrorist you must prevent the counter-terrorist from saving the hostages or plant a bomb is a specific location and set it off before the counter-terrorist team alimates your terrorist force.
Windows 98/Windows ME/Windows 2000/Windows XP OS
Intel Pentium IV 1.8 GHz or similar
512 Mb RAM
nVidia GeForce FX 5200/ATI Radeon 9550 or similar VGA
1000 Mb HDD