According to the latest info, the game is rated 4.5 on Google Play. Some in-app purchases and adverts are included into this application. A lot of users installed the app on their Nvidia and HTC devices.
Take the opportunity to get the .apk file of Thunder Assault 1.6.8 for free and have a look at users' reviews on Droid Informer. This installation package requires 26 MB of disk space and it runs on Android devices 4.1 and higher.
According to the users’ opinions, you can notice such disadvantages of the app as grammar errors, many ads and terrible customer support.