Minimum System Requirements
Windows
OS:
Vista
Processor:
1.4GHz dual-core Intel Core i3 or AMD equivalent
Memory:
2 GB RAM
Graphics:
Intel HD Graphics 4200
Storage:
250 MB available space
Notes:
Version 9.0c; Integrated audio; May need to reduce the graphics quality in-game
macOS
OS:
OSX 10.7
Processor:
1.4GHz dual-core Intel Core i5
Memory:
2 GB RAM
Graphics:
Intel HD Graphics 4200
Storage:
250 MB available space
Notes:
Integrated audio; Macbook Air runs it smoothly with reduced graphics
Linux
OS:
Ubuntu 12.04
Processor:
1.4GHz dual-core Intel Core i5 or AMD equivalent
Memory:
2 GB RAM
Graphics:
Intel HD Graphics 4200
Storage:
250 MB available space
Notes:
Integrated audio
Recommended System Requirements
Windows
OS:
7
Processor:
2.0Ghz quad-core Intel Core i7
Memory:
4 GB RAM
Graphics:
Any NVidia or ATI card that cost at least $200 in 2010
Storage:
250 MB available space
Notes:
Version 9.0c; Integrated audio; SSD recommended for faster loading times
macOS
OS:
OSX 10.7
Processor:
2.0Ghz quad-core Intel Core i7
Memory:
4 GB RAM
Graphics:
NVIDIA GeForce GT 650M (mobile), or GTX 260 (desktop)
Storage:
250 MB available space
Notes:
Integrated audio
Linux
OS:
Ubuntu 14.04.1
Processor:
2.0Ghz quad-core Intel Core i7
Memory:
4 GB RAM
Graphics:
NVIDIA GeForce GT 650M (mobile), or GTX 260 (desktop)
Storage:
250 MB available space
Notes:
Integrated audio
These are the requirements the publisher lists on Steam.
