Civilization III Complete Edition
DirectX 9.0b or Later
|Hard Drive Space:||
1.7 GB Hard Disk Space
Requires the Steam client to install and play
|Download Client Required:||
400 MHz Processor
128 MB Available System Memory
Yes, when you buy the game you have to login to steam to activate the game code sent to you. To begin the download.
Yes it can be played as a single player version against the Game’s AI.