And why is it so popular? Well, at first it might not be that easy to see the merit of this game since it does seem to be a bit out-of-date and there aren't any particularly mind blowing bonus features other than some conventional wild wins and 5 free spins. This 5-reel, 40-payline video slot can be found at casinos across the world as well as online at any casino websites which stock IGT slot machines. IGT is one of the slot machine world's most iconic names and one of that company's most icon titles is Wolf Run, a game that which belongs to the game studio's Megajackpots collection.