Step into the Great Plains and start looking for the magnificent bison. Stacking Bison is an online slot game developed by Swintt with a wildlife theme. The game includes memorable visual elements like detailed symbols in various colors and brown reels. Users will also find a unique landscape and Native American ornaments in the background.

Stacking Bison is equipped with 5 reels and offers 720 ways to win. In addition to six playing card values, this game has five other regular symbols: a bird, a coyote, a bear, a cougar, and a bison. Whenever a bison icon appears on the screen, the bison collection meter grows by 1. Once the meter goes up to 36, the bison respin feature will be activated. During this feature, any or all reels are replaced with one of the high-value icons in that/those reel/s.

This game also has a Free Spins icon, and landing three or more of these symbols anywhere on the matrix will activate up to 15 free spins. Only high-value icons will end on the reels during free spins, and at least one reel will be covered with an identical symbol.  Finally, the buffalo wild sign is a wild icon that replaces regular symbols when necessary.