To play Guild Quest you will need a minimum CPU equivalent to an Intel Core 2 Duo E8400. Guild Quest system requirements state that you will need at least 256 MB of RAM. The cheapest graphics card you can play it on is an NVIDIA GeForce 510. In terms of game file size, you will need at least 120 MB of free disk space available.
Guild Quest will run on PC system with Windows 7 and upwards. Additionally it has a Mac version.
