There is no donator rank or any microtransactions. And according to previously accumulated information, if you donated for VIP, you will get a %10 off discount. (Don’t count me on it though.)
Unreal Engine 4
Not sure, but it’ll definitely be bigger than the 70 addons pack for GMT.
“I’m not entirely sure if GMTower donators/Indiegogo backers will get a special rank/item in Tower Unite, but we’ll work that out once we get closer to launch.”