The cheapest graphics card you can play it on is an NVIDIA GeForce GTX 560. Futhermore, an NVIDIA GeForce GTX 1050 Ti is recommended in order to run Live3D with the highest settings. In terms of game file size, you will need at least 4 GB of free disk space available. An Intel Core i5-4570 CPU is required at a minimum to run Live3D. However, the developers recommend a CPU greater or equal to an Intel Core i7-4790 to play the game. Live3D system requirements state that you will need at least 8 GB of RAM.
Live3D will run on PC system with Windows® 7 or later and upwards.