Developer 
Features Big Bass Xmas Extreme is a Pragmatic Play slot from the Big Bass series, set on an Antarctic fishing trip with Christmas-themed visuals. The game uses a standard reel layout with scatter symbols, fisherman collectors, and cash prizes shown on the reels. Its RTP is listed at 96.07%.
Three scatter symbols trigger the free spins round, awarding 10 free spins with modifiers active at the start. Two scatters on the top two rows can also grant a respin for another chance to activate the bonus. During free spins, each fisherman symbol collects the cash values on the reels, while every fourth fisherman awards 10 extra spins and a multiplier up to 50x. A random waterfall feature may add cash prizes across the reels.
The game page includes a demo version, allowing players to play for free and practice before playing for real money. Bonus modifiers before free spins can add extra spins, guaranteed cash symbols, starting fishermen, or remove the lowest cash value. The slot is available in English and supports multiple currencies, including USD.
