About game: https://en.wikipedia.org/wiki/Civilization_V
Required system specs:
Operating System: SteamOS
CPU Processor: Intel Core i3, AMD A10
CPU Speed: 2.4GHz
Memory: 4 GB RAM
Hard Disk Space: 10 GB
Video Card (ATI): Radeon HD 6450
Video Card (NVidia): Geforce 640M
Video Card (Intel): Iris Pro
Video Memory (VRam): 1GB
Right now game selling with discount 75% on Steam
http://store.steampowered.com/app/8930/
Epic win for Linux gaming!