There are two online slot games at Playtech powered casinos like Omni Casino and Mansion Casino that are popular because of the unique Lock & Spin feature. The earlier video slot was Wild Gambler with the African Safari theme. The symbols include zebra, leopard, rhino, flamingo and lion, which is the wild symbol. The playing card symbols depict the hide designs of the African animals. The sequel is titled Wild Gambler: Arctic Adventure. It is set in the polar region, with the polar bear replacing the lion as the wild symbol. The other animals are caribou, walrus, white fox and penguin. The playing card icons crafted in ice.

The Lock & Spin feature is common to both slot machines. You can choose to lock the wild symbols that land on the screen at a cost. The cost will depend on the number and location of wilds being locked. A cage appears on the locked wild symbol. The locked wilds are held in place for the next spin. The locked wilds will remain in place till they are deactivated. You can also create your own locked wilds through the Play Your Way feature by clicking on any symbol. The multiplier value of each locked wild can be set to up to 5x. For both these you have to pay a price.

Both these slot games also include free games features that are different. In Wild Gambler the free games are triggered if you get meerkats at the bottom of the screen holding up letters that spell BONUS. You will be awarded 8 free games. Any wild symbols that were on the reels in the triggering spin will be locked and stay locked for all the remaining free games without any extra cost. Also any new wild symbols that appear during subsequent spins will get locked for the remaining free games. This usually results in big wins in the last few free games, so only 8 free games is not so bad. The free games cannot be re-triggered.

In Wild Gambler: Arctic Adventure the free games feature is triggered by three or more Free Spins symbols landing anywhere on the reels. Three symbols award 7 free spins, four symbols award 12 free spins and five symbols award 20 free spins. As in the original slot game, any locked wilds and multipliers on the reels in the triggering spin will continue and any wilds landing on the reels during the free games will automatically be locked.