Expanding Reels

Cossacks the Wild Hunt a New WonderWays slot by Foxium and Microgaming.
God of Fire is a five reeled slot with 243 ways to win that can expand exponentially.
Zulu Gold is a six-reeled slot with 4096 ways to win that can expand to 261,144.
Cygnus is a 6-reeled slot with up to 262,144 ways to win.
The Grand Galore – Million Ways To Win and Re-Spins
Katmandu Gold by Elk Studios – a Slot With up to 531,441 Ways to Win
Legacy of Oz Hyperspins is the new installment by Triple Edge Studios.
Nitropolis 2 - six reels and up to 191,102,976 ways to win
Scarab Kingdom by Microgaming and JFTW is a 30-lined video slot with an Ancient Egyptian theme.
Turning up the heat might be selling this slot short; setting fire to the screen is a better way to put it.