Specs

Alien Invaders landed in July 2025 from Pragmatic Play, and it sits in the studio’s tumble family, not the payline catalogue. Forget lines, honestly. This pokie runs on a marked bottom row with a cascade system, so it plays nothing like a classic five-reeler. The board is five reels wide, though each reel carries a shifting three to five symbols, which means the shape changes from spin to spin. Off to the side, there is a cartoon alien in a saucer with a purple planet behind it under a starfield, while colourful invaders and sci-fi 10, J, Q, K royals pack the reels. It looks like a kids’ cartoon. Under the hood, mind you, it is a high-volatility tumble engine built around one number that only matters once the bonus kicks in.

A quick word on the numbers, because this game really splits into two camps. The paytable, feature rules and 5,000x ceiling were all pulled live from the in-game Game Rules book and the base-game banner in Pragmatic’s own AUD demo, while the screenshots below are our own frames. One figure was NOT listed on those rules pages: the RTP. Pragmatic shows 96.50% on the game’s own page, so that is the RTP source, with adjustable lower builds sitting alongside it. Everything else on this page comes from the demo. When a figure comes from a source rather than a demo read, we say so.

Symbols & Paytable

Both the symbol names and cash values came straight from the game. Page 1 of 7 in the in-game Game Rules book shows the full numeric paytable, read live at the demo’s A$1.80 total bet, and every value below is copied from there. One thing matters before you dig into the table: these pays are listed “for each symbol in the winning combination”, not per line. That comes directly from the marked-row rule. Once the bottom row fires up a reel, every matching symbol across those active reels counts, so one symbol type can pay from a stack of positions in the same hit.

The orange fire-alien sits at the top of the premium pile at A$1.80 per symbol on the A$1.80 bet, which is roughly 1x the total bet for every one included in a win. Next up is the blue one-eye alien at A$0.90, while the teal and yellow aliens share the A$0.45 tier. The red robot-alien lands in the middle at A$0.18. Down the ladder, the four sci-fi royals, 10, J, Q and K, all pay A$0.09 each. Cheap filler, sure, and they make up plenty of the smaller wins. The UFO scatter has no fixed pay itself; it is there to trigger Free Spins and clear a mini area.

No fruit. No bars. The per-symbol amounts scale with how many matching symbols land on the active reels, so the table above is better viewed as the value of one symbol rather than a line prize. The real cash comes from how many symbols tumble together and what the win multiplier does to the final total.

Game rules

The marked-row win rule

Alien Invaders has no paylines. The bottom row of the reels is always marked with a blue highlight, and that row alone creates wins. Land 3 or more of the same symbol there and the game takes over from that point.

• The bottom row is always marked, and every base capture shows that strip highlighted blue.
• A win starts when 3 or more matching symbols land on the marked row.
• The reels holding a winning symbol become active, and every copy of that symbol across the active reels counts towards the win.
• That is why the pays are quoted per symbol, honestly. One symbol type can pay from plenty of positions in a single hit.
• Symbols sitting above the marked row do nothing until they tumble down onto it.

Tumble

Once a win lands, the winning symbols explode and fresh ones tumble into the gaps, giving the same win a chance to keep rolling. It is Pragmatic’s standard avalanche setup. Simple mechanic, well, but it is the thing driving the whole pokie.

• Winning symbols disappear after they pay; the symbols above drop down and new ones fill from the top.
• Tumbles keep repeating for as long as new winning combinations keep landing.
• All wins from a single spin are added together once the tumble sequence finally stops.
• One base spin can be a single small hit or a long chain of them, all before the next spin.

Rising Win Multiplier

Every spin arrives with a win multiplier that rises as the board gets cleared. It happens automatically, the punter cannot control it, and the way it behaves in the base game is the most important piece of maths to get straight.

• Every base spin starts fresh at a 1x win multiplier.
• For every 10 symbols that explode during the tumbles, the multiplier climbs by 1x. Symbols cleared by a scatter count toward that ten.
• Any multiplier carried by a wild that lands on the marked row is added on top.
• In the base game the multiplier RESETS to 1x at the start of the next spin, so a big chain has to happen inside one spin to matter.
• Captured live, the badge climbed 1X to 2X to 4X to 6X across a single cascading spin.

Wild

The wild substitutes for everything except the scatter, though it only counts once it reaches the marked row. It also carries its own multiplier value, which feeds into the win multiplier.

• The wild substitutes for all symbols except the UFO scatter.
• In the base game it only shows up on reel 3, mind you. In Free Spins it can land on reels 2, 3 and 4.
• It sits inactive and greyed out above the marked row, then comes alive once it drops onto that row.
• Base-game wilds carry 1x, 2x, 3x, 5x, 10x or 25x. In Free Spins, sure, the wild can reach up to 100x.
• A live capture showed a reel-3 wild carrying a “1X” badge in the base game.

Free Spins

The UFO scatter kicks off the bonus, and honestly that is where the game does its heavy lifting. One rule runs the whole round: the win multiplier stops resetting and keeps rolling through every bonus spin.

• Hit 3 or more UFO scatters on a spin and its tumbles fire up 7 free spins.
• Every scatter after the third adds another 3 free spins.
• The win multiplier does NOT reset between spins in the round. Each increase sticks around right through to the end of the bonus.
• Reels begin 3 symbols high and can randomly expand by 1, reaching a max of 5 after a spin. Once a reel grows, it stays that height for the rest of the round.
• Any scatter that lands on the marked row during the round retriggers 1 extra free spin.
• The Free Spins wild can carry up to 100x, while the base game tops out at 25x.

Double Chance

Double Chance is Pragmatic’s usual ante-bet toggle. You pay more on every spin for a better shot at the bonus. It showed up in the demo’s bet panel and was switched off by default.

• Toggling Double Chance on, well, bumps the stake up and increases how often the Free Spins trigger lands.
• It is off by default; the punter has to opt in, simple as that.
• The exact cost multiplier was not printed on the rules pages checked, so this follows the standard Pragmatic ante behaviour rather than a demo-read figure.
• No bonus-buy button showed up anywhere in this build. Double Chance is the only trigger lever available.

Max win

The ceiling was read live from the base-game banner, so it is a demo reading backed by external agreement rather than a number pulled only from a source.

• The maximum win is 5,000x the total bet, shown in-game as “WIN UP TO 5,000 X BET”.
• That ceiling, honestly, sits in Free Spins, where the persisting multiplier stacks over wilds worth up to 100x on reels that can stretch to five high.
• The base game, with its resetting multiplier and 25x wild cap, is where a punter waits it out for the scatters to land.

Screenshots

All three shots below are our own captures from the live AUD demo, taken in fun-play at an A$1.80 total bet. Any balance shown on screen is demo credit, not staking advice. Unlike plenty of Pragmatic wrappers, this one actually let the in-game Game Rules book open, so the third shot shows the real numeric paytable page instead of a stand-in. Slot mechanics and the symbol set are documented in the Game rules section above, while spec parameters are in the table at the top.

Where the money actually lives

Most tumble pokies keep the multiplier in check by carrying it somewhere. Alien Invaders does not, at least not in the base game, and that one choice pretty much tells the maths story. At the start of every base-game spin, the win multiplier drops back to 1x. So the +1x-per-ten-symbols climb, the mechanic pushed on the attract screen, only counts when the climb and the win land in the same spin. Most base spins are just a modest three-alien hit on the marked row at a 1x or 2x multiplier. Plenty goes on across the reels, mind you. The balance usually still moves in small steps.

There is one fair dinkum way to get a base-game spike, and the demo actually landed it. A long tumble chain, or better yet a scatter blasting out a cluster of nearby symbols, can clear ten, twenty or thirty symbols in one spin and drag the multiplier higher as it goes. Our own session banked a A$72.36 base win off a A$1.80 stake when the multiplier reached 4X mid-cascade. That is the base game doing what it is built to do. It is rare though, and once the spin ends everything resets, so there is no carry-over momentum from one spin to the next. Each base spin starts fresh.

Free Spins are a different beast altogether, and one word tells you why: persists. Trigger the bonus with 3 UFO scatters and the win multiplier stops resetting. Every ten symbols cleared throughout the round pushes it higher and keeps it there. Ten spins into a round with a solid clear rate, the multiplier is no longer sitting at 2x or 4x. It has become the sort of number that can turn a small tumble into a proper payout. Add wilds that can carry up to 100x instead of 25x, plus reels that keep growing to five symbols tall and give more space to clear, and the round starts feeding into itself. That is where the 5,000x ceiling sits. Not in the base game. In Free Spins. So, of course, every sensible call on this pokie comes back to reaching the bonus rather than hammering away at the base.

Once a punter understands that, the whole game reads differently. The base game is not the product. It is the toll road to the round that pays. All those invaders, explosions and the climbing multiplier badge look like the main action, yet on a high-vol tumble build the return is bunched behind a scatter trigger that cannot be rushed. The busy base game keeps feeling as though it is about to go off. The maths says that, most of the time, it is not. The money is waiting somewhere the base game rarely sends you.

The base multiplier versus the free-spins multiplier

The most useful fact to keep in your head on Alien Invaders is that the win multiplier is really two different mechanics wearing the same badge. In the base game, it is a per-spin bonus that disappears when the spin ends. In Free Spins, it becomes a round-long accumulator that only goes up. Same badge. Same +1x-per-ten-symbols rule. Completely different value across a session.

That difference gives strategic weight to everything else. Since the base multiplier resets, there is no such thing as “warming up” the board or building toward something through a run of base spins. A punter twenty spins into a dead stretch is in exactly the same position as a punter on spin one; both start at a 1x multiplier. The base game rewards one big spin, then forgets it straight away. Chase a base-game multiplier and you are chasing a number that vanishes before the next spin loads.

The Free Spins multiplier works the other way. It is cumulative, meaning early clears can keep paying dividends late in the round. As the bonus runs longer, the reels grow taller, more symbols can clear on each spin, and the persisting multiplier climbs faster. A slow-starting round can still finish huge because nothing resets. That is why the game is so heavily gated: the base game gives you a resetting multiplier and a 25x wild cap, while the bonus gives you a persisting multiplier and a 100x wild cap. The value is deliberately funnelled into the round. A punter who gets that plays for the trigger and treats the base game as the cost of reaching it.

High volatility and what a session feels like

The volatility rating here is demo-rated, not sourced, and that distinction matters. On the in-game attract screen, the flame meter is filled five-of-five, so High is what Pragmatic itself shows on the box. External reviews agree, but the rating on this page comes from the meter we saw live. The mechanics make High easy to believe. Base wins arrive small and often, mostly through low-symbol hits on the marked row, while the real payoff sits behind a scatter trigger that cannot be summoned on demand. That is classic high-vol structure: choppy base play, dry stretches, and the serious money locked inside a bonus you have to wait for.

For an Australian punter, the practical read is blunt. Small base hits do not mean the game is heating up. A base multiplier reaching 4X during a strong tumble does not mean the bonus is close either; it resets on the next spin and says nothing about when the scatters will land. High-vol maths has no memory. A long spell without a bonus is normal for this pokie, not a fault and not a tell. Read the base trickle as momentum, raise the stake because of it, and the wallet can empty before the paying round ever arrives. The stake needs to be small enough to survive a genuinely long wait for three UFOs.

Do not mix up RTP and volatility. The 96.50% default is about long-run cost, the slow toll taken across an enormous sample of spins. Volatility is about how rough the trip gets while you are nowhere near that long-run average. Alien Invaders is high on the second measure and in the mid-90s on the first, and the two move independently. One tells you what the game keeps over time. The other tells you how violently the balance can move before you get anywhere close to that long run.

RTP configs and the pre-play lever

The default is 96.50%, and that number comes from Pragmatic’s page rather than the game itself, because the rules book we read did not show RTP anywhere. That deserves its own warning: RTP is the one headline figure on this page that cannot be checked inside the game. Alongside the 96.50% build, Pragmatic ships lower configs sourced at 95.48%, 94.51% and 92.01%. The spread is wide. At the bottom end, it is severe.

• The sourced builds are 96.50% (default), 95.48%, 94.51% and 92.01%.
• From the 96.50% top build to the 92.01% floor, the gap is about four and a half percentage points, which is a large difference in long-run cost on a high-vol game.
• The operator chooses which build it integrates, so the same pokie can cost you a little or a lot depending on where you play it.
• The in-game rules pages did not display any RTP figure; the whole set is sourced from Pragmatic’s game page and external listings.
• The sensible pre-play move is checking the info panel at your casino for the live RTP before you throw money in, because, mind you, a four-point swing on a high-vol title is something worth knowing.

A four-and-a-half point spread is no tiny rounding error. On a game where the return already leans heavily on a bonus, running the 92.01% build means the house takes close to eight cents in the dollar over the long run instead of three and a half. Same reels. Same features. The odds are still meaningfully worse. It is a real lever before the first spin, and the punter cannot touch it, so checking which build is live is the only defence, honestly.

Double Chance, honestly

Double Chance is the only toggle Alien Invaders puts in front of the punter, so it deserves a straight answer. This is Pragmatic’s standard ante-bet: switch it on, pay more per spin and get a better shot at landing Free Spins. It was off by default in the demo, and there was no bonus-buy button anywhere. That leaves Double Chance as the only way to change the trigger frequency at all.

The fair way to look at Double Chance is as a cost-versus-frequency trade, not an edge. Paying extra per spin to hit the bonus more often does not improve the core maths. It brings the round you are chasing closer on average, sure, but you pay for that shortcut. On a pokie where the return lives inside Free Spins, some punters will happily spend more per spin and spend less time grinding the quiet base game. Others will keep the stake down and wait for the trigger naturally, squeezing more spins out of the bankroll. Neither option beats the house edge. It is simply about how you want the spend shaped: pay more per spin for a quicker trigger, or pay less and wait it out. The exact ante cost was not shown on the rules pages we checked, so match it against your bankroll once the casino shows the price.

Provider context

Pragmatic Play is a Malta-headquartered studio and one of the biggest slot makers reaching Australian players, mostly through offshore casinos. Alien Invaders landed in July 2025 and joins the studio’s long run of tumble games that started with Sweet Bonanza and the Gates and Sugar Rush families. The regulatory side is the same as with any offshore RNG studio, and it is worth clearing up because access and currency questions pop up around plenty of AU-facing titles under the Australian Interactive Gambling Act 2001 (IGA 2001).

• Pragmatic Play is not licensed under the IGA 2001, because offshore RNG slot studios do not hold that type of local licence; AU players reach its titles through offshore-licensed casinos.
• Using an offshore casino is not itself a criminal offence for the player under the IGA 2001; the Act targets operators or advertisers offering real-money online slots to Australians locally.
• The Double Chance ante is a standard Pragmatic feature and is available in AU-facing builds; there is no bonus buy on this title.

Demo notes

The demo on this page runs through Pragmatic’s own demo gateway, and every fresh load starts with new fun-play credits instead of a real-money balance. That makes it a handy way to poke around before anything is at risk. Let the base game spin and watch two things: the blue marked bottom row, where every win gets settled, and the “WIN MULTIPLIER” badge at the top-left, which resets to 1X every spin. Put those together and, well, you have the entire base game stripped down.

Two things are worth knowing about the demo. First, it loaded in AUD, showed A$ throughout and opened with a A$1.80 default total bet, all confirmed live. Second, the in-game Game Rules book opened properly, so the paytable, feature rules and 5,000x banner on this page are read from the demo rather than pulled from elsewhere. The engine symbol in the demo URL is vs20alieninv. The “vs20” prefix is a Pragmatic engine-class tag and does NOT mean 20 paylines; this game has no fixed lines at all, and the URL alias points to Alien Invaders on the gateway. RTP is the only figure sourced rather than read directly from the game.

FAQ

Q: Does Alien Invaders have 20 paylines? A: Not really. The “vs20” in the engine symbol is a Pragmatic class tag, not a payline count. Wins come from the marked bottom row, and payouts are listed per symbol.

Q: How does the win multiplier work? A: Straight up, it climbs 1x for every 10 symbols that explode during a spin. In the base game, it resets every spin. In Free Spins, it sticks around for the whole round, and that is where it can do real damage.

Q: How do the free spins trigger? A: Land 3 or more UFO scatters across a spin and its tumbles for 7 free spins, with 3 more for every extra scatter. The reels grow up to 5-high and the multiplier stops resetting.

Q: What is the max win and where does it land? A: 5,000x total bet, read live from the base banner. Realistically, it is a Free Spins result, where the persisting multiplier can stack on wilds worth up to 100x across taller reels.

Q: Is the RTP really 96.50%? A: Yes, that is the default, sourced from Pragmatic’s page because it is not shown in the rules book. Operators can also run 95.48%, 94.51% or 92.01% builds, so check your casino’s info panel before staking.

Last updated: 9 Jul 2026 Reviewed by Mark Henderson, Senior Slots Analyst

Demo embed · played in fun-money mode. No real-money play here.