LINUX OS: Ubuntu 14.04 LTS Processor: 2.0 Ghz Memory: 2.5GB Hard Disk Space: 200MB Video Card: 128mb Video Memory, capable of OpenGL 3.0+ support (2.1 with ARB extensions acceptable
Operating System: Debian Stable or Ubuntu 12.04 LTS or later Processor (CPU): Core 2 Duo Memory (RAM): 2 GB RAM Graphics Card: 256 MB graphics memory and opengl 2.1 compatible gpu Network: Broadband Internet connection Storage: 3 GB available space
Operating System: SteamOS or Ubuntu 16.04 or 17.04 Processor (CPU): Dual-Core Intel i5 CPU @ 2GHz+ Memory (RAM): 4 GB RAM Graphics Card: Intel 4xxx Series w/ 512MB VRAM or better Storage: 7 GB available space Sound Card: Any on-board chip will work.