An Intel Core 2 Duo E8400 CPU is required at a minimum to run Rakuen. The cheapest graphics card you can play it on is an NVIDIA GeForce 6100. You will need at least 250 MB of free disk space to install Rakuen. The minimum memory requirement for Rakuen is 512 MB of RAM installed in your computer.
Rakuen will run on PC system with Windows XP, Vista, 7, 8, 10 and upwards. Additionally it has Mac and Linux versions.