GTA: Brave Knights
Once upon a time in a far away kingdom, there was a king who don't want to lose his daughters to marriage. The king would kill anyone, who would want to marry his daughters, but there are lots of brave men wanting to marry her daughters. The idea here is to not let any single knight to reach the palace. You need to put some towers in strategic locations, so you can stop the knights from reaching the palace. Each kill would drop money and you can use it to build more towers. After each battle, you can upgrade your stats, so you can fight better next time.