Defensive wall

I did it concept for thr project Population Zero MMO Survival with a great art team! I created a concept and constructor of a defensive wall with gates that could be defended thanks to the upper ramps, shooting cabins and a unique lifting mechanism of the gate. It was an interesting engineering job! I had a great pleasure.) 
Art directors: 
https://www.artstation.com/alexeysamokhin 
https://www.artstation.com/alexander_vasin