ENG
You can create your own levels
"." - Normal Ground
"r", "u", "l", "d" - Directional Road
"b" - Branching Road
"+" - Place for a Turret
"O" - Enemy Portal
"T" - Tower

RUS
    
"." -  
"r", "u", "l", "d" - 
"b" - 
"+" -   
"O" -  
"T" - 