The creative range of bonus features adds additional fun to this magical slot. The game unfolds on a 6×6 grid, utilizing a. Review included. Gronk's Gems offers a unique and immersive gameplay experience set in a mystical world filled with treasures. At full whack, Gronk's Gems is capable of firing off wins as high as 7,x the stake, a sort of mid-level amount for a Hacksaw Gaming slot. Author: Jon Pill | This review was last updated: 27 Jan Play Gronk's Gems slot for free in demo mode, without spending any money. It comes with Epic Gem wins, as well as 2 unique bonus rounds and a x. A fitting amount. Gronk's Gems is a medium volatile troll slot from Hacksaw. Hacksaw Gaming's slot has a strong win potential if you don't mind toying with the. No download or registration required. Gronk's Gems slot has 6 reels, 6 rows and % RTP. Click here for AboutSlots complete slot review & information on where to play it! Play the Gronk's Gems slot for free or real money at online casinos. They have a cave troll! Meet the beefy but friendly, gem-collecting cave troll Gronk! Gronk's Gems is played on a 6×6 grid, has a cascading win. When you land three of Gronk's head anywhere on the reels, you activate the first of them. . The Gronk's Gems video slot has two free spins modes.