However, this is a paid game and you will have to pay around five dollars to to get it’s APK. This game is launched at Google Play Store and you can download this game on your Android smartphone & tablet devices.
New weapons will be unlocked after completion of each successful mission and at the same time your enemy will be stronger enough to give you more difficult challenges. On completion of every level, choice of weapons for your heroes also expands. You can upgrade your weapons and your set of heroes to make your attack more powerful against your enemies.
On defeating aliens attack you will be rewarded by more supplies and more planned arrangement which will help you in intense battles in the future. Place your troops and tanks in such a way that none of the aliens can surpass your territory. In OTTTD your main focus should be on your strategy, build the tower and then defend your territory with honor. The game play of OTTTD is very interesting and it’s not like ordinary TD games as it is a mixture of RTS and TD.
