Tower Stack™ – Bison
About this machine
TOWER STACK™ BISON: Standing proud with a new stack series with 16 vertical reel positions and up to 150 lines. Players can select to play up to 3 frames totaling 150 paylines. Playing the PLUS FACTOR ante bet adds an extra selectable play area according to reel angle and turns all symbols on reel 5 wild. In the 8 free games, special reels with a greater number of the “Top” symbol are used.
* Please note not all cabinets are available in all regions.
Description sourced from the manufacturer's public product page.
Tower Stack™ – Bison on video
Real footage of this machine — 1 clip whose title names it. We index them; the videos live on YouTube. More on YouTube ↗
Artwork & cabinet
Where Tower Stack™ – Bison sits in Aruze Gaming's range
Tower Stack™ – Bison is part of Aruze Gaming's Tower Stack line, which runs to 12 documented titles. Manufacturers ship a hit as a family rather than one box, so entries in a series share branding and often a bonus structure while carrying different maths.
What's the RTP of Tower Stack™ – Bison?
There isn't one number — and any site quoting you a single figure is describing a different product.
Manufacturers ship the same title in multiple par versions, commonly spanning roughly 85% to 96%. The casino chooses which one to install, and that choice is not disclosed on the machine. Nevada regulation only sets a floor: every wager must theoretically return at least 75%.
What regulators actually publish is hold percentage — realised performance after player behaviour, aggregated by region and denomination. It is never broken out by game title. So the honest answer for any land-based machine is a range plus an unknown configuration, not a single figure.
Figures quoted elsewhere for this title are almost always taken from its online version, which is a different product with a different maths model.
Where to play
We don't yet have verified floor placements for this machine. Our casino cross-reference covers 442 properties, but only through IGT's public linked-progressive data — which doesn't reach Aruze Gaming titles. We would rather show nothing than guess.
Rest of the Tower Stack line
All 12 Tower Stack machines →12 titles carry this branding. They share artwork and usually a bonus structure, but each ships its own maths.
Most-filmed Aruze Gaming machines
All 432 Aruze Gaming machines →The titles from this manufacturer that slot channels actually put on camera.
