Alien Invaders Slot Demo - Free Play

Alien Invaders Slot Review

Blast off with Alien Invaders, a unique slot game from Pragmatic Play. This 5-reel slot comes with 3 to 5 rows per reel, with the number of symbols changing randomly on each spin. Wins are triggered when matching symbols land on the bottom row, and any identical symbols above them also count toward the win.

Each win activates the Tumble feature, where winning symbols disappear and new ones fall into place. This can create back-to-back wins, while multipliers increase with every series of Tumbles and reset only once the sequence ends. Wilds substitute for other symbols, while scatter symbols explode when they hit the bottom row, boosting wins and unlocking the free spins feature. During free spins, additional rows unlock permanently, and multipliers grow throughout the round.

This high-volatility slot has a 96.50% RTP and a maximum win of 5,000x your stake, worth up to 1,200,000.00 at the highest bet. Alien Invaders can be played across desktop and mobile devices for an action-packed space adventure.

How to Play Alien Invaders

Alien Invaders has a fun cartoon theme, with colourful aliens filling the reels. Even the playing card symbols (10–A) have quirky faces, while a green alien in a spaceship hovers to the side of the grid. The game’s lively electronic soundtrack enhances the space setting.

You can play from as little as 0.20 up to 240.00 per spin. Bet settings are adjusted using the + and – tabs next to the Spin button. An optional Ante Bet increases the stake by 25% but doubles the odds of triggering free spins. Players outside the UK can also buy direct entry to free spins for 65x the bet, or Super Free Spins with a 50x starting multiplier for 400x the stake. UK players, however, cannot access these purchase features or use Autoplay/Quickspin.

Wins occur when 3 or more matching symbols land on the highlighted bottom row. Any identical symbols above those reels also count, boosting payouts. Lower-value symbols (10, J, Q, K) pay from 0.05x, while the fiery alien pays up to 1x per symbol in a win.

Alien Invaders Symbols & Payouts

• Alien characters: The fiery alien pays the highest prizes up to 1x per symbol.
• Playing cards: 10, J, Q, and K pay 0.05x each when part of a win.
• Wild symbol: Substitutes for others and builds multipliers during Tumbles.
• Scatter symbol: Meteorites explode on the bottom row and trigger free spins.

Alien Invaders Free Spins & Bonus Features

Every win activates the Tumble mechanic, with unlimited cascades possible. The wild symbol, a purple alien, builds multipliers by 1x for every 10 symbols collected. If a wild reaches the bottom row, the multiplier applies to the win before resetting at the end of the Tumble sequence.

Scatter meteorites explode on the bottom row and award 7 free spins when 3 land anywhere, plus 1 additional spin for each extra scatter. Free spins start with 3 rows per reel, with extra rows added randomly until reaching the 5-row maximum. Once unlocked, reels stay expanded for the remainder of the feature. Multipliers remain persistent, growing with every 10 winning symbols and can randomly boost to 2x, 3x, 5x, 10x, 25x, 50x, or 100x. Extra scatters award more free spins.

Alien Invaders RTP, Maximum Win & Volatility

Alien Invaders is a high volatility slot with a 96.50% RTP. The maximum payout is 5,000x your stake, which equals 1,200,000.00 when playing at the top bet size. Free spins end automatically if this cap is reached.

Alien Invaders Slot Verdict

Pragmatic Play’s Alien Invaders slot stands out with its unusual payout system and fun, cartoon alien design. The expanding reels, Tumbles, and wild multipliers provide exciting gameplay, while the free spins feature adds long-term potential. The top prize of 5,000x isn’t the highest compared to some slots, but the engaging mechanics make this a must-try game.