Use Special Letter
 

How to use (( ' )Like on assassin's creed) in game file name. After inserting it in game file name inno setup give error.

use '' - (two apostrophes) instead ' - (one) e.g. Assassin''s Creed, result will be Assassin's Creed, (it's trick for showing apostrophe in Delphi and Inno Setup).

NOTE
Don't use
Instead use
or whatever your game's name is.

no it will need to be Assassin'' s Creed Rogue ( two single ' not the double " ) for inno to interpret it correctly. Try it using the double & it will give error, where the two single wont.