Windows - System Requirements
Operating Systems: Windows Vista (SP2), 7 (SP1), 8/8.1, 10 (1703/Creators Update) – 64-bit or 32-bit
Processor: Intel Pentium 4, Intel Core or AMD Athlon – 2.2 GHz or higher.
Memory: 2 GB RAM
Graphics: Intel GMA X4500, NVIDIA GeForce 9600M GT or AMD/ATI Mobility Radeon HD 3650 – 256MB VRAM
DirectX: Version 9.0c
Hard Drive: 7 GB available space
Mac - System Requirements
Operating Systems (64-Bit): OS X 10.8.5 Mountain Lion, OS X 10.9.5 Mavericks, OS X 10.10.5 Yosemite, OS X 10.11.6 El Capitan, OS 10.12 Sierra, OS 10.13 High Sierra
Processor: Intel Core 2 - 1.8GHz or higher
Memory: 2 GB RAM
Graphics: Intel GMA X4500, NVIDIA GeForce 9600M GT or AMD/ATI Mobility Radeon HD 3650 – 256MB VRAM
OpenGL: 2.1
Hard Drive: 7 GB available space
STEAMOS + Linux System Requirements
Operating Systems: SteamOS, Ubuntu 14.04.5 LTS Linux (64 bit)
Processor: Intel Pentium 4, Intel Core or AMD Athlon - 2.2GHz or higher
Memory: 2 GB RAM
Graphics: Intel HD Graphics 3000/4000, NVIDIA GeForce 9600M GT or AMD/ATI Mobility Radeon HD 3650 – 256MB VRAM
OpenGL: 2.1
Hard Drive: 7 GB available space