Alien Invaders - a high-volatility space slot at Goldex Casino
Pragmatic Play's Alien Invaders uses growing reels and a win multiplier that builds as symbols explode. RTP 96.50%, high volatility means wins arrive less often but run much bigger.
Play Alien Invaders: a high-volatility space invasion slot
Variable reel heights and tumble wins. Alien Invaders is a space-themed slot from Pragmatic Play released in July 2025. It runs on a 5-reel grid where each reel independently holds between 3 and 5 symbols per spin, creating a variable board height rather than a fixed grid. Wins form anywhere across the reels when you land 3 or more matching symbols on the marked bottom row. The tumble mechanic then removes winning symbols and drops new ones in their place, repeating until no fresh wins emerge. This high-volatility game delivers wins less often but can reach much bigger payouts.
Is this slot for you? Alien Invaders suits players who enjoy long stretches between wins and the potential for substantial payouts in exchange. With a minimum bet of NZ$0.20 and example bets around NZ$0.50 to NZ$1, you can adjust your stake to match your budget. The slot's high volatility and exploding symbols mean regular smaller hits are less common; if you prefer frequent small wins, this game runs against that style. Those drawn to space themes and cascading mechanics will find the alien characters and tumbling action engaging.
How does the multiplier grow? The Win Multiplier shapes each round most significantly. It starts at 1x and climbs by 1 for every 10 symbols you explode through tumbles or scatter explosions. During the base game, it caps at 25x, but during free spins it widens to 100x. Any multiplier carried by a wild symbol adds to the gauge when that wild lands on the marked row. This multiplier applies to winning combinations as they land and persists through free spins, meaning your payouts can compound dramatically across a single round.
See MoreGame figures and what they deliver
Understand the slot's RTP, limits and pay structure before placing your first bet
Pragmatic Play
NZ$1 200 000
Alien Invaders: how each round runs
Read this before your first spin to understand what happens after you press play
How Alien Invaders plays across the screen
Alien Invaders free spins explained
Bet bigger, trigger faster. Optional bet multiplier of x1.25 your base stake. Doubles your chance of triggering free spins and increases scatter density on the reels, but disables the buy free spins button entirely while active.
When scatters land across the board. Triggered by 3 or more scatter symbols across a base spin. Awards 7 spins plus 3 additional spins per scatter beyond the third. Each reel starts at 3 symbols and may grow to 5 during the round. Win multiplier persists across all spins.
How much does buying free spins cost? Purchase the bonus instantly for NZ$65 at the example bet level. Triggers a free spins round with standard purple overlay and the same rules as a naturally occurring trigger. Unavailable when ante bet is switched on.
Alien Invaders super free spins. Purchase for NZ$400 at the example bet level to start free spins with your win multiplier gauge at 50x instead of 1x. Features a distinct visual theme and the same reel growth mechanics. Available alongside the standard free spins purchase.
Demo mode versus live stakes
Understand the difference between practicing without stakes and playing for cash at Goldex Casino.
What your hundred pounds returns under each condition
RTP is the average amount returned across a very large number of spins over an extended period. Each figure here applies only to the specific game condition listed next to it: the standard game runs at one rate, buying Free Spins triggers another, and using the ante bet or buying Super Free Spins activates a third.
RTP 96.50% · Standard game
RTP 96.49% · Buy Free Spins active
RTP 96.51% · Ante bet or Buy Super Free Spins
What cannot be guaranteed about this slot?
Don't count on timing. Bonus rounds come and go unpredictably. No spin count or session length can guarantee Free Spins will trigger. Some sessions award them early; others may not land them at all.
Can one session match the RTP? The RTP of 96.50% describes long-term behaviour across many sessions. Any single session plays by chance alone; you might win less than the average, more, or nothing.
Will you reach the maximum win? The maximum win of NZ$1,200,000 is a theoretical ceiling, reached exceptionally rarely. Most sessions fall well short of it. Plan around your stake, not the top prize.
Standard play versus paid features
Skip to the bonus
Buy Free Spins instantly triggers a seven-spin bonus round where reels grow and your multiplier persists. At NZ$1 per spin, this costs NZ$65 and bypasses the need to land three scatters.
Multiplier jump start
Buy Super Free Spins starts your bonus with a 50x multiplier already loaded and a distinct visual theme. At NZ$1 per spin, this premium option costs NZ$400 and guarantees a stronger multiplier foundation.
When you want more scatters
Ante Bet raises your total stake by 25 percent to NZ$1.25 per spin, doubles your scatter frequency, and increases Free Spins triggers. This paid bet disables the Free Spins buy button while active.
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Questions players ask about Alien Invaders
Goldex Casino answers the questions that matter before your first spin.
Can I buy the Free Spins bonus in Alien Invaders?+
What is the maximum win when playing Alien Invaders?+
Can I play Alien Invaders for free without wagering?+
Do I need three Scatters to start the Free Spins round?+
How long before wins start appearing in Alien Invaders?+
Set your boundaries before spinning
How much should you bet. Decide how much you can afford to lose before your first spin. This amount sits outside your everyday spending and entertainment budget, not borrowed or essential money.
Know your exit point before you start. Choose a win amount and a loss limit in advance. Once you reach either one, cash out and walk away, regardless of how the reels are running.
Taking back control. Goldex Casino offers deposit limits, loss limits and cooling-off periods. Use them to control how often and how much you spend across all games.
Getting help when you need it. If the game stops feeling like fun or you are chasing losses, use a session reminder, take a pause or self-exclude. Lifeline Aotearoa, the Gambling Helpline New Zealand and the Problem Gambling Foundation of New Zealand offer free support.