In terms of game file size, you will need at least 314 MB of free disk space available. The cheapest graphics card you can play it on is an NVIDIA GeForce 6100. To play BAD END you will need a minimum CPU equivalent to an Intel Pentium 4 2.40GHz. BAD END system requirements state that you will need at least 2 GB of RAM.
BAD END will run on PC system with Windows 10 / 8.1 / 7 (64-bit or 32-bit) and upwards.