In terms of game file size, you will need at least 350 MB of free disk space available. An Intel Core 2 Duo T7600 CPU is required at a minimum to run Janken Cards. Provided that you have at least an ATI Radeon 3000 graphics card you can play the game. The minimum memory requirement for Janken Cards is 2 GB of RAM installed in your computer.
Janken Cards will run on PC system with Windows 7 and upwards. Additionally it has a Mac version.
Minimum System Requirements
RAM
2 GB RAM
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