Is this slot game by Net Entertainment? (NetEnt)? Because if yes, I think I have so many insights to share with you guys on how to win it. Silverback Gold is NetEnt's more volatile follow-up to Gorilla Kingdom, and the jungle game has 5x4 reels and 1,024 chances to win. In all levels of the game, the Silverback Attack feature gives up to 20 top-tier gorilla symbols at random, and you can upgrade all animal symbols up front in the pre-bonus hold-and-win type feature. You may now earn up to 45,000x your stake in the bonus round, which has up to x3 multiplier wilds and token collect symbol upgrades.