Ripple system requirements state that you will need at least 512 MB of RAM. An AMD Athlon XP 1800+ CPU is required at a minimum to run Ripple. In terms of game file size, you will need at least 100 MB of free disk space available. The cheapest graphics card you can play it on is an AMD Radeon 9200.
Ripple will run on PC system with Windows XP and upwards.