In terms of game file size, you will need at least 2 GB of free disk space available. The cheapest graphics card you can play it on is an AMD Radeon HD 5450. Fugue system requirements state that you will need at least 2 GB of RAM. An Intel Pentium 4 2.00GHz CPU is required at a minimum to run Fugue.
Fugue will run on PC system with Windows Vista or greater and upwards. Additionally it has Mac and Linux versions.