You will need at least 2 GB of free disk space to install Six. An Intel Core 2 Duo T7250 CPU is required at a minimum to run Six. Six system requirements state that you will need at least 2 GB of RAM. Additionally, the game developers recommend somewhere around 4 GB of RAM in your system. Provided that you have at least an Intel HD 4000 graphics card you can play the game. Futhermore, an NVIDIA GeForce GTX 970 is recommended in order to run Six with the highest settings.
Six will run on PC system with Windows Vista and upwards.