Sid Meier's Civilization 4 - 1.74 Sid Meierâ€™s Civilization IV comes-to-life like never before in a beautifully detailed, living 3D world that expands the gameplay experience. This latest installment takes the franchise to new heights with the addition of new ways to play and win, new tools to manage and expand your civilization, all-new easy to use mod capabilities and various multiplayer modes and options. With Sid Meierâ€™s Civilization IV, rule throughout time and create your own legacy as you guide your civilization from the dawn of man through the space age and beyond. Implement new technologies, conduct diplomacy or wage war to grow your society and become the most powerful leader the world has ever known. System Requirements: Operating System: Mac OS X 10.3.9 CPU Processor: PowerPC G5 or Intel chipset CPU Speed: 1.8 GHz Memory: 512 MB or higher Hard Disk Space: 3.5 GB free disk space Video Card (ATI): Radeon 9600 Video Card (NVidia): GeForce FX 5200 Video Memory (VRam): 64 MB or higher Multiplayer: Internet (TCP/IP) and LAN (TCP/IP) play supported. Internet play requires broadband connection. Media Required: DVD Drive Supported Video cards: NVIDIA GeForce 5200, 6600, 6800, 7800 ATI Radeon 9600, 9650, 9700, 9800, X600, X800, X850, X1600 Recommended System Requirements: Operating System: Mac OS X 10.4.6 CPU Processor: PowerPC G5 or Intel chipset CPU Speed: 2.0 GHz Video RAM: 128 MB Works on Leopard and Snow Leopard.