In terms of game file size, you will need at least 950 MB of free disk space available. The minimum memory requirement for Gunpowder is 2 GB of RAM installed in your computer. An Intel Pentium 4 2.00GHz CPU is required at a minimum to run Gunpowder. Whereas, an Intel Core 2 Duo U7600 is recommended in order to run it. The cheapest graphics card you can play it on is an NVIDIA GeForce 8800 GTX. But, according to the developers the recommended graphics card is an NVIDIA GeForce 6100.
Gunpowder will run on PC system with Windows XP+ and upwards. Additionally it has Mac and Linux versions.