The cheapest graphics card you can play it on is an NVIDIA GeForce GTX 660. Futhermore, an NVIDIA GeForce GTX 760 is recommended in order to run Dragon's Sin with the highest settings. To play Dragon's Sin you will need a minimum CPU equivalent to an Intel Core i5-650. However, the developers recommend a CPU greater or equal to an Intel Core i7-7Y75 to play the game. You will need at least 8 GB of free disk space to install Dragon's Sin. Dragon's Sin system requirements state that you will need at least 8 GB of RAM.
Dragon's Sin will run on PC system with Win7 / Win8 / Win10 and upwards.