Anticipation, actually it is common to evaluate the game with an asterisk. Because I do not know the game, since it only runs on Amazon Fire devices. Surely it would work on other Android devices, but presumably it is believed at Amazon that you buy a Fire device to get the 'exclusive' games and app's. But I can probably assure on behalf of the majority, that none is the only reason to buy a Fire device. So Amazon would do you a favor if you would sell this app's games and also to owners with 'normal' Android devices. Because apart from the daily free app of Amazon App Store does not convince much. Since many app's outdated versions are offered and / or the functionality is limited compared to the same app's Google Play Store. What has been one of the reasons for me to draw the Fire devices at all into consideration - because I'm not sure if you can use the Play Store to the full extent.