Wolf Run 1 & 2 is one of the most popular online slot machine games developed by IGT till date. Wolf Run, as the name suggests, is based on a winter. Below is a free version of the popular Wolf Run slot from IGT that you can play in your browser, no registration required. Play Wolfrun and other IGT slots right. Wolf Run. You'll have a howling good time as you look to chase down big time wins with this furry and fun-filled online slot. Wolf Run invites players to embrace.