Mount M

Mount M is a five-reel video slot from Play'n GO, released on 8 September 2022. Set beneath Mammoth Mountain, the game uses a prehistoric animal theme with a snowy backdrop and stacked mammoth symbols. The slot is designed around reel expansion and symbol upgrades, with a high-volatility format and a wide betting range.

Landing three scatter symbols triggers the free-spin round, during which the middle reels can expand. Wild symbols add orbs to an icy block, and when five orbs are collected a new reel may be added, with the total extending to eight. When ice breaks, high-paying symbols can transform into mammoths, while a wild on glowing reels can activate a respin that unlocks one to four reel expansions and upgrades matching animal symbols.

The demo version is available to play for free, which allows players to review the mechanics and practice before playing for real money. The slot uses a large ways-to-win structure and focuses on incremental reel growth, symbol transformation, and bonus spins rather than traditional fixed paylines.