We agree that sometimes it can be really difficult to tell the difference between original game and its’ pirated variant. One of the foolproof ways how you can do it is by looking from what server the game is being loaded from. Another option would be to check each and every feature of the pokie before actually starting to play it. Finally, you can tell if pokie is fake by GEO-restrictions: if some provider is blocked in your area but you still can play his games in most of the cases it will mean that you are actually using the pirated copies.