To play iO you will need a minimum CPU equivalent to an Intel Core 2 Duo E8400. iO system requirements state that you will need at least 2 GB of RAM. Provided that you have at least an NVIDIA GeForce 6200 graphics card you can play the game. You will need at least 250 MB of free disk space to install iO. Make sure your have 500 MB of free disk space in order to install iO.
iO will run on PC system with Windows XP+ and upwards. Additionally it has Mac and Linux versions.