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Alien Invaders by Pragmatic Play is a 5-reel slot with 20 fixed paylines and a high-volatility profile. The game uses a 5x4 layout, where 3 to 5 symbols can land on each reel. Winning symbols on the bottom row activate the reels, causing matching symbols to explode and form combinations.
The base game starts with a 1x win multiplier, which increases by 1x for every 10 symbols that explode in a spin. Wild symbols on reel three can carry multipliers of up to 25x when they reach the bottom row. Scatter symbols are also part of the feature set: three scatters trigger 7 free spins, with extra spins added for each additional scatter.
In the bonus round, win multipliers persist between spins, and wilds can carry multipliers of up to 100x. This demo version is available to play for free, making it suitable for players who want to practice before playing for real money and study the slot mechanics, scatter triggers, and multiplier features.
