In terms of game file size, you will need at least 200 MB of free disk space available. GIGABUSTER system requirements state that you will need at least 4 MB of RAM. An Intel Pentium 4 2.53GHz CPU is required at a minimum to run GIGABUSTER. Whereas, an Intel Pentium 4 3.00GHz is recommended in order to run it. The cheapest graphics card you can play it on is an NVIDIA GeForce 6100. But, according to the developers the recommended graphics card is an NVIDIA GeForce 510.
GIGABUSTER will run on PC system with Windows 7 or higher and upwards.