All bonus content will be explained in more detail later in the review. These special icons appear throughout the base and free spins game, covering entire reels with wild icons to help score more wins. The other feature here is the introduction of stacked wilds. In the free spins round, the payouts are usually larger, thanks to a higher concentration of high-value symbols. These are then re-triggerable from within the bonus by landing additional scatter icons. This will result in players being given five free spins. The features for Wolf Run revolve chiefly around the free spins game, which is triggered when players land three or more scatter icons on the reels simultaneously. Mechanically, this is a five-reel, four-row slot with 40 fixed pay lines and an RTP of 94.98%. Whether this popularity will translate to a digital platform is yet to be decided. Clearly, at some point, the popularity of this game in brick-and-mortar casinos became so overwhelming that soon the powers that be decided it should be adapted for a wider online audience. However, there are a few differences which we will explain later in this review. Broadly, as many people will no doubt have hoped, the online version of this slot is the same as its physical cousin. Developed by IGT, Wolf Run is a digital reimagination of the famous Las Vegas slot game with the same name.