In terms of game file size, you will need at least 200 MB of free disk space available. To play Vilmonic you will need a minimum CPU equivalent to an Intel Core 2 Duo T7250. Vilmonic system requirements state that you will need at least 2 GB of RAM. The cheapest graphics card you can play it on is an NVIDIA GeForce 6100.
Vilmonic will run on PC system with Windows XP and upwards. Additionally it has Mac and Linux versions.