Just found this whilst trawling the App Store: Terraria 2 by Ville Otawa https://appsto.re/gb/jAhecb.i Anyone want to take a punt and let us know how disappointed you were?! Shocking - how did this get past Apple?!
Clearly a fake. Using screenshots of Terraria easily found on google images and the loads of dummy accounts to fill the reviews The only one legit review is a 1 star saying the game you actually get is called geo rush.