The cheapest graphics card you can play it on is an NVIDIA GeForce GTX 260. Futhermore, an NVIDIA GeForce 6100 is recommended in order to run NiHonGoToKi with the highest settings. An Intel Core i5-6400 CPU is required at a minimum to run NiHonGoToKi. However, the developers recommend a CPU greater or equal to an Intel Core i5-8300H to play the game. NiHonGoToKi system requirements state that you will need at least 8 GB of RAM. In terms of game file size, you will need at least 500 MB of free disk space available.
NiHonGoToKi will run on PC system with Windows 7 and upwards. Additionally it has Mac and Linux versions.