October, 2016 – 26 best Mohegan Sun coupons and promo codes. Save big on room rates and activities. Today’s top deal: 10 off..Among the most popular and engaging card games, . offers players a chance to test their skills against each other. Come play at the Mohegan Sun!.Today’s best: Sign up Get Exclusive hotel offers | MoheganSun.com – 8 Promo Codes.Every Mohegan Sun deal and coupon from Groupon, LivingSocial, Yelp and 800+ others..For help signing into My Mohegan Sun or questions about your account, please call 1.888.226.7711 or visit a Player’s Club booth..