As mentioned above, Aquation is available to play on Android devices, on iOS devices, and in your web browser. If you try to play it in your web browser, be patient as it takes a while to load.
Applications for Education
Aquation isn't a fast-paced game so it probably won't grab your students' attention when they open it. But if you can push through the initial "blah" reaction from your students, the game contains some valuable lessons about the global distribution of freshwater resources and the challenges that face the regions that have less than others.