What does this game need ?

Hey , this topic is about what the game need ! You can suggest new elements like buildings or vehicles . 

What i think , What i want to add to this game !

     -Planes

     -Vehicles

     - A maze-building

     And you what do you think about this project , what do you want to add ? I'm listening to you .Like we say in french : n'atendez pas demain pour faire ce que vous pouvez faire aujourd’hui !