Steampunk Tower, the simple tower defence game originally only available on iOS has now been released on Google Play.
According to Droidgamers, the notable interesting point about this game is that you actually do have a tower that you have to defend. You do this by destroying attackers on both sides and upgrade your steam powered tower in the process.
There have been mixed reviews about the game from critics, but why not see for yourself? The game is available for free on Google Play.