Invaders from the Planet Moolah (WMS Gaming)

Where science fiction meets barnyard comedy, Invaders from the Planet Moolah transports players to a sleepy Midwest farm under siege by extraterrestrial bovines piloting flying saucers. Released July 4, 2013, this WMS Gaming creation achieved landmark status by helping pioneer the cascading reels mechanic that would become an industry standard—a feature where winning symbols disappear and new ones tumble down from above, creating chain reaction wins from a single spin. The title plays upon the slang term “moolah” (meaning money) while establishing “Planet Moolah” as the alien cows’ home world, delivering genuine humor through its premise of space-faring cattle abducting Earth’s livestock.

WMS Gaming’s corporate lineage traces to the Williams Manufacturing Company, founded in 1943 by Harry E. Williams in Chicago, Illinois. Williams revolutionized pinball through innovations including the tilt mechanism and electrically-powered scoring holes. The company branched into arcade video games in 1973, creating classics such as Defender, Joust, and Robotron: 2084. WMS Gaming emerged as a gambling equipment subsidiary in 1991, introducing its first slot machines in 1994 and rapidly becoming a major industry player. In October 2013—the same year Invaders from the Planet Moolah launched—Scientific Games acquired WMS Industries for $1.5 billion. The following year, Scientific Games also acquired Bally Technologies for $3.3 billion plus $1.8 billion in assumed debt. WMS was fully merged into Scientific Games in 2016, and the parent company rebranded as Light & Wonder in 2022. The WMS brand remains active under the Light & Wonder umbrella alongside Bally and Shuffle Master.

Invaders from the Planet Moolah emerged during a pivotal period for cascading mechanics. While IGT’s Da Vinci Diamonds (2007) introduced “tumbling reels” to the industry, WMS refined and popularized the concept with superior thematic integration—alien UFOs literally beam winning symbols away—creating visual causality that enhanced player engagement beyond the mathematical advantage of multiple wins per spin. The game’s enduring popularity spawned multiple sequels: Invaders Return from the Planet Moolah introduced the mythical Unicow capable of awarding up to 300 free spins, Invaders Attack from the Planet Moolah added HD graphics and enhanced wheel bonuses, and Journey to the Planet Moolah represents the latest evolution with expanded specialty cows and progressive jackpot access.

Technical Specifications

Specification	Details
Developer	WMS Gaming (Light & Wonder)
Release Date	July 4, 2013
Reels × Rows	5 × 3
Paylines	25 (fixed)
RTP	92.97% – 96% (varies by configuration)
Volatility	Low to Medium
Maximum Win	3,750 coins (750× line bet)
Minimum Bet	$0.25
Maximum Bet	$125
Denomination Range	$0.01 – $5.00 per line
Hit Frequency	Moderate (enhanced by cascading mechanics)
Features	Cascading Reels, Free Spins, Stacked Wilds, Mixed Symbol Payouts
Platform	HTML5 (Desktop and Mobile)

Theme, Visuals, and Audio

Invaders from the Planet Moolah presents a delightfully absurd collision between 1950s B-movie science fiction and American pastoral comedy. The visual premise places players at a rural Midwest farm where a family of unsuspecting characters witnesses their livestock being abducted by cow-piloted spacecraft. Five flying saucers hover permanently above the reels, each commanded by a different alien cow—three ships notably featuring visible udders—establishing immediate visual identity that distinguishes this title from countless generic sci-fi offerings.

The backdrop depicts the vastness of space with planets and stars visible behind the reels, creating atmospheric contrast between the cosmic setting and mundane farm symbols appearing on the game grid. Semi-transparent reel design allows the space environment to show through, maintaining thematic immersion during gameplay. Animation quality delivers genuine personality: winning combinations trigger the UFOs’ tractor beams, visibly “zapping” successful symbols upward while remaining icons cascade downward. Abducted character symbols display amusing expressions of alarm as they’re beamed aboard—a small touch that demonstrates the developer’s commitment to comedic execution.

Symbol design divides between farm-life iconography and the alien invaders themselves. The symbol roster comprises a Jackpot UFO symbol as the premium icon, five character symbols (Grandpa, Grandma, Man, Cowgirl, and Dog) capable of combining for mixed-symbol wins, and farm object symbols including Barn, Trailer, Truck, Milk carton, Mailbox, Outhouse, and Chicken. Three distinct cow wild symbols—white, brown, and black-and-white variations—represent the alien invaders and appear across reels two through five. The differentiation between wild variations serves no mathematical purpose but increases visual variety and perceived wild frequency during play.

Audio design commits fully to the science fiction comedy aesthetic. The soundscape combines ambient space effects with retro sci-fi elements: electronic whooshes accompany UFO movements, tractor beams emit characteristic humming, and the most memorable audio cue arrives with wild cow symbols triggering distinctive “moo” sound effects—sometimes alarmed, sometimes comical. An alert klaxon and recorded voice shouting “We want our cows back!” activates during certain feature triggers, emphasizing the narrative absurdity. The overall audio presentation maintains entertainment value through extended sessions, though players sensitive to repetitive sound effects may find the constant alien noises overwhelming during feature-heavy gameplay.

Gameplay Mechanics

Invaders from the Planet Moolah operates on a 5×3 configuration with 25 fixed paylines—all lines remain active regardless of bet denomination. Unlike traditional spinning reels, symbols drop into position from above, establishing the visual foundation for the cascading mechanic that defines the gameplay experience. Winning combinations form when three or more matching symbols align consecutively from left to right across any active payline.

The betting structure multiplies line denomination by the 25 active paylines. Denominations range from $0.01 to $5.00 per line, creating total stake options spanning $0.25 (minimum) to $125 (maximum) per spin. At maximum stake, the 3,750-coin jackpot translates to $18,750, though the game also imposes a $250,000 maximum payout ceiling regardless of stake level—a consideration for players wagering at maximum denomination who might theoretically exceed this cap through extended cascade sequences.

RTP configurations vary significantly by deployment. Online implementations typically offer 96% return-to-player, placing the game at industry average. However, some configurations report 95% or even 92.97% RTP, making verification through casino information or game rules essential before real-money play. The substantial 3+ percentage point variance between highest and lowest configurations creates meaningful long-term value differences—players should actively seek higher-RTP implementations.

Low-to-medium volatility creates a relatively balanced return distribution. Players experience wins more frequently than high-volatility alternatives, though individual payouts remain modest. The cascading mechanic partially offsets lower individual win values by creating multiple winning opportunities per spin, effectively smoothing variance while maintaining engagement through visual cascade sequences.

Symbol Values and Paytable

The paytable presents credit values based on line bet denomination, requiring players to multiply displayed values by their per-line stake for actual win calculation. This structure differs from total-bet multiplier displays common in modern slots.

Premium Symbols:

The Jackpot Symbol (depicting a UFO with “Jackpot” text) represents the highest-value standard icon. Five symbols award 750 credits (30× line bet at $0.01 denomination), four symbols award 150 credits, and three symbols award 30 credits. Despite its name, this icon functions as a standard high-paying symbol rather than a progressive or fixed jackpot trigger—no separate jackpot prize exists beyond the standard paytable.

Character Symbols (Mixed Payout):

Five character symbols—Grandpa, Grandma, Man, Cowgirl, and Dog—share a unique mixed-symbol payout structure. Any combination of these five icons appearing five times across a payline awards 500 credits. This mechanic increases effective hit frequency by allowing disparate character symbols to contribute toward common wins, though the mixed payout rate falls below dedicated five-of-a-kind values for individual premium symbols.

Farm Object Symbols:

The Barn symbol awards 250 credits for five matching icons. The Trailer awards approximately 200 credits for five. The Truck provides 150 credits for five. These mid-tier symbols bridge the value gap between premium characters and low-paying farm items.

Low-Value Symbols:

The Chicken and Milk carton each award approximately 100 credits for five-of-a-kind. The Mailbox and Outhouse occupy the lowest paytable positions at approximately 80 credits for five matching symbols. These common symbols appear frequently, contributing to base-game hit rate while delivering modest returns.

Wild Symbols:

Three cow wild symbols—white cow, brown cow, and black-and-white cow—function identically as substitutes for all standard symbols. Wilds appear exclusively on reels 2, 3, 4, and 5, preventing wild-only winning combinations from the leftmost position. The multiple wild variations increase perceived wild frequency and visual variety without altering mathematical probability. Cow wilds frequently appear in stacked configurations, covering multiple positions on a single reel and dramatically increasing win potential when multiple stacks align.

Cascading Reels Feature

The cascading reels mechanic—sometimes called “tumbling reels” in IGT terminology—fundamentally transforms the slot experience by enabling multiple wins from a single stake. When any winning combination forms, the contributing symbols are “beamed up” by the hovering UFOs, disappearing from the grid. Remaining symbols then cascade downward to fill vacated positions, with new symbols dropping from above to complete the grid. The game re-evaluates for winning combinations, potentially triggering additional cascades.

This process continues indefinitely until no new wins form, meaning a single spin can theoretically generate dozens of consecutive wins. Each cascade maintains the original stake—players pay once but receive cumulative payouts for every successful cascade. The mechanic creates natural excitement escalation as consecutive wins build, with the cascade counter visible on-screen tracking progress toward free spins activation.

Visual execution reinforces mechanical function. The five alien cow pilots remain perpetually ready above each reel, and their tractor beams illuminate whenever winning symbols require removal. Symbols rise visibly toward the spacecraft before the cascade completes, providing satisfying cause-and-effect feedback that purely numerical multiplier systems cannot replicate. This thematic integration represents WMS’s significant contribution to cascading reel evolution beyond the mathematical innovation.

The cascading system increases effective RTP through additional winning opportunities while simultaneously accelerating gameplay pace. Each cascade occupies additional animation time, meaning feature-heavy sessions involve more screen activity per spin than traditional slot play. Players should account for this pacing difference when planning session length.

Free Spins Feature (Invasion Feature)

The primary bonus feature activates through consecutive cascading wins rather than traditional scatter symbol collection. A cascade meter displayed adjacent to the reels tracks consecutive wins within a single spin. Four or more consecutive cascades trigger the Invasion Feature, with free spin allocation scaling according to cascade count:

Consecutive CascadesFree Spins Awarded475106157258+50

The maximum 50 free spins requires eight consecutive cascading wins from a single triggering spin—a relatively rare occurrence but achievable given sufficient wild symbol coverage and favorable cascade sequences. The cascade-based trigger creates organic activation tied to gameplay momentum rather than random scatter distribution.

Additionally, the Invasion Feature can activate randomly at the conclusion of any spin that did not achieve four cascades organically. Random activation awards seven free spins, providing bonus access even during sessions lacking extended cascade sequences. This random trigger partially offsets the skill-independent nature of cascade chains, ensuring feature access across diverse session outcomes.

Free spins operate on alternate reels distinguished by bright green coloring, visually differentiating bonus gameplay from the base game. The original wager carries over—free spins execute at the stake level that triggered activation. All base-game mechanics remain active: cascading reels continue functioning, meaning free spins can generate their own cascade sequences and accumulate additional wins.

Critically, the free spins feature supports retriggering. Achieving four or more consecutive cascades during free spins awards additional spins according to the same allocation table. Theoretically, extended retrigger chains could generate substantial free spin totals, though practical session experience typically sees more modest accumulation.

Mathematical Model

The 92.97% to 96% RTP range demands attention from value-conscious players. The 96% ceiling positions Invaders from the Planet Moolah at industry average for online slots, providing acceptable long-term value. However, configurations at 92.97% fall meaningfully below recommended minimums—players effectively sacrifice 3+ percentage points of return compared to optimal configurations. Always verify RTP through game rules or casino information before committing real-money play.

Low-to-medium volatility indicates relatively balanced return distribution with moderate win frequency and modest individual payout sizes. The cascading mechanic influences perceived volatility by creating occasional extended win sequences within single spins, generating session variance spikes even within an otherwise consistent return distribution.

The 3,750-coin maximum win (750× line bet for Jackpot symbol) represents the highest single-symbol payout, achievable through five Jackpot symbols across an active payline. However, practical maximum win potential extends beyond single-symbol calculation due to cascading mechanics—extended cascade sequences accumulate multiple wins within a single spin, potentially exceeding single-combination limits. The $250,000 maximum payout ceiling establishes an absolute boundary regardless of cascade accumulation at high stakes.

Hit frequency benefits from multiple design elements: 25 active paylines provide substantial coverage across the 15-position grid, the mixed-symbol payout system increases effective matching probability for character symbols, and cascading mechanics generate additional win opportunities from successful initial combinations. Combined, these factors produce relatively frequent base-game activity compared to high-volatility alternatives.

Variance concentrates within cascade sequences and free spins features. Extended base-game cascades (4+ consecutive wins) simultaneously trigger bonus features and accumulate substantial cascade-sequence payouts. Free spins with successful retriggers can generate disproportionate session returns. Conversely, sessions lacking extended cascades or feature triggers may experience below-average returns across standard base-game cycles.

Mobile Optimization

HTML5 architecture ensures cross-platform compatibility across desktop and mobile devices. The game adapts responsively to various screen dimensions, maintaining playability on smartphones, tablets, and desktop browsers without requiring dedicated applications or downloads.

The 5×3 grid configuration scales effectively to smaller screens while preserving symbol clarity. Bold, cartoonish symbol design proves more legible at reduced sizes than detailed photorealistic alternatives—the chunky cow wilds and distinctive character symbols remain instantly recognizable on mobile displays. Touch-optimized controls replace mouse-based interaction, with tap-to-spin functionality and gesture-based stake adjustment.

Portrait and landscape orientations both function effectively, with interface elements repositioning appropriately. The cascade meter maintains visibility in both orientations, ensuring players can track progress toward free spins activation regardless of device orientation. UFO animations render smoothly on modern mobile hardware, maintaining visual appeal despite reduced processing capabilities compared to desktop systems.

Audio functions appropriately across mobile configurations, though device speakers may struggle to reproduce the full sound design effectively. Headphone usage significantly improves the audio experience for mobile sessions. Data consumption falls within typical ranges for HTML5 slots, and battery impact remains manageable for standard session lengths.

Strategy and Bankroll Management

Low-to-medium volatility with cascade-enhanced hit frequency creates specific bankroll considerations. Feature activation requires extended cascade sequences rather than random scatter accumulation, meaning bonus access depends partially on favorable symbol arrangements rather than pure probability. Bankroll must sustain play through periods lacking cascade momentum while remaining sufficient to capitalize on favorable sequences when they occur.

Conservative bankroll allocation: Minimum 100× intended stake provides approximately 400 spins at base-game loss rates, sufficient for typical sessions but potentially insufficient for extended bonus drought periods. Standard allocation: 150-200× intended stake balances session duration against risk tolerance, allowing comfortable navigation through variance while maintaining meaningful potential. Extended/recreational allocation: 250× intended stake accommodates prolonged sessions with feature-hunting orientation.

At $0.25 minimum stake: $25-$50 reserves for conservative to standard play. At $1.00 stake: $100-$200 reserves. At $5.00 stake: $500-$1,000 reserves.

RTP verification represents the single most impactful strategic consideration. The 3+ percentage point variance between configurations translates to substantial long-term value differences—seeking 96% configurations versus accepting 92.97% implementations meaningfully affects expected outcomes across extended play.

Stake selection influences cascade value accumulation. Higher stakes multiply cascade sequence payouts, amplifying favorable sequences but also accelerating bankroll depletion during dry periods. The $250,000 maximum payout ceiling only becomes relevant at very high stakes where cumulative cascade wins might theoretically exceed this limit.

Session expectations should account for the cascade trigger mechanism. Unlike scatter-triggered features with calculable statistical frequency, cascade-based activation depends on sequential favorable outcomes—some sessions naturally produce extended cascades while others fail to generate momentum regardless of spin count. Patience and realistic expectations regarding feature access improve recreational enjoyment.

Demo mode provides valuable practice opportunity for understanding cascade mechanics, cascade-to-feature conversion rates, and overall game pacing before real-money commitment. The multiple wild symbol variants and mixed-symbol payouts merit familiarization through no-risk play.

Comparison with Franchise and Similar Titles

Within the Planet Moolah Franchise:

The original Invaders from the Planet Moolah (2013) established the core mechanics and thematic foundation. Its direct sequels expanded upon these elements:

Invaders Return from the Planet Moolah introduced the mythical Unicow feature—a rare symbol capable of appearing during certain trigger conditions and awarding up to 300 free spins with additional modifiers. The sequel enhanced land-based cabinet presentations with larger shared screens above linked game banks.

Invaders Attack from the Planet Moolah represents an HD update of Return, adding four distinct Unicow variations, enhanced wheel bonuses during free spins (including the “We’re Multiplying” multiplier modifier and “We Want Our Cows Back” wild-adding feature), and improved visual fidelity through HD screen technology. Land-based implementations feature prize wheel spins that can award multipliers up to 7×, giant symbols, or progressive jackpot game access.

Journey to the Planet Moolah (latest entry) expands specialty cow functionality with Symbol Blast, Moolah Wilds, Credit Cows, Multiplier Cows (2×-10×), and Drop-in Wilds. The game introduces a Unicow Max Plays feature that increases maximum free spin potential whenever the Unicow appears but isn’t captured, and provides progressive jackpot access through both paytable symbols and the Journey bonus introduction sequence.

For players seeking the purest experience, the original offers streamlined mechanics without sequel complexity. Players wanting maximum feature depth should explore Journey to the Planet Moolah if available.

Compared to Other Cascading Slots:

Da Vinci Diamonds (IGT, 2007) pioneered tumbling reels with an art-themed presentation. It offers 94.94% RTP, 20 paylines, and up to 300 free spins through scatter-based triggering. The Renaissance aesthetic contrasts sharply with Planet Moolah’s comedic approach, appealing to players preferring sophisticated theming over humor.

Gonzo’s Quest (NetEnt, 2011) refined cascading mechanics with multiplier escalation—consecutive wins increase multipliers from 1× through 5× in base game and up to 15× during free falls. Its 95.97% RTP and Incan adventure theme attract players seeking multiplier-enhanced cascade experiences rather than comic presentation.

Reactoonz (Play’n GO, 2017) represents modern cascading evolution with cluster-pays mechanics, 96.51% RTP, and multiple modifier features. Its 7×7 grid and cartoon alien theme share comedic DNA with Planet Moolah while offering substantially different gameplay structure.

Strengths

The cascading reels mechanic delivers genuinely engaging gameplay with visual causality—watching UFOs beam winning symbols creates satisfying cause-and-effect feedback that static multiplier systems cannot replicate. The thematic integration between mechanics and presentation demonstrates superior design philosophy.

Humor succeeds where many attempts fail. The absurd premise of alien cows abducting Earth livestock maintains genuine entertainment value through extended play, supported by amusing animations (panicked abduction expressions) and committed audio design (“We want our cows back!”).

The cascade-based bonus trigger ties feature access to gameplay momentum rather than random scatter distribution, creating earned-feeling activation when extended cascades convert to free spins.

Low-to-medium volatility with cascade-enhanced hit frequency provides accessible engagement without extreme variance, suitable for recreational players seeking entertainment over high-risk jackpot chasing.

The franchise expansion demonstrates ongoing development commitment, with sequels adding meaningful features (Unicow, multiplier cows, progressive jackpots) while preserving core identity.

HTML5 mobile optimization ensures consistent cross-platform accessibility.

Weaknesses

The 3+ percentage point RTP variance between configurations creates substantial value uncertainty. Players may unknowingly engage with 92.97% implementations when 96% alternatives exist elsewhere, sacrificing meaningful long-term value through deployment lottery.

The 3,750-coin maximum single-symbol payout falls below modern high-volatility competitors offering 10,000× or higher maximum multipliers. Players seeking transformative single-spin wins should explore higher-volatility alternatives.

No progressive jackpot exists in the original version—the “Jackpot” symbol merely represents the highest-paying standard icon, potentially misleading players expecting dedicated jackpot functionality. Sequel versions address this limitation with progressive access.

The 2013 release date means graphics quality lags contemporary productions, though the cartoonish style ages more gracefully than photorealistic alternatives attempting period accuracy.

The comedy-heavy theme may not appeal to all players—those preferring serious, sophisticated, or traditionally themed slots may find the constant alien noises and absurdist premise tiresome rather than entertaining.

Feature trigger dependency on cascade sequences rather than calculable scatter probability creates session variance in bonus access—some sessions naturally generate cascades while others fail regardless of spin count.

Demo and Real-Money Availability

Invaders from the Planet Moolah distributes broadly through the Light & Wonder operator network, appearing across numerous online casinos and land-based establishments.

Land-based availability spans major casino markets including Las Vegas, Atlantic City, regional casinos throughout North America, and tribal gaming establishments. The game’s popularity ensures continued floor presence despite its 2013 vintage, often alongside sequel cabinets offering enhanced presentations.

Online availability extends to regulated US markets including New Jersey, Pennsylvania, Michigan, West Virginia, and Connecticut through licensed operators such as BetMGM Casino, DraftKings Casino, FanDuel Casino, and BetRivers. UK operators and Malta-licensed international platforms also commonly feature the title. Geographic availability varies by jurisdiction and operator portfolio—verification through specific casino game libraries confirms accessibility.

Demo mode provides unlimited no-risk play at numerous casino review sites and direct Light & Wonder demonstration platforms. Demo functionality replicates real-money mechanics entirely, enabling thorough evaluation of cascade frequency, feature trigger rates, and overall engagement suitability before financial commitment.

Casino bonus compatibility follows standard operator terms. Slots typically contribute 100% toward wagering requirements, though individual casino policies may specify exclusions or modified contribution rates. Progressive jackpot variants (sequel versions) may face bonus restrictions common to jackpot-eligible games.

Conclusion

Invaders from the Planet Moolah delivers enduring entertainment through successful synthesis of mechanical innovation and thematic commitment. The cascading reels system—visualized as UFO tractor beam abductions—transforms abstract mathematics into tangible cause-and-effect gameplay, while the absurdist alien cow invasion premise maintains genuine humor across extended sessions. Low-to-medium volatility creates accessible engagement, the cascade-based bonus trigger rewards favorable sequences with meaningful free spin allocation, and franchise expansion demonstrates ongoing development attention through multiple sequels adding progressive complexity.

The significant RTP variance between configurations (92.97% to 96%) demands verification attention—seeking optimal implementations meaningfully impacts long-term value. The 3,750-coin maximum win falls below modern high-volatility standards, and 2013 graphics quality reflects the game’s vintage despite graceful stylistic aging. Players seeking transformative single-spin potential or sophisticated theming should explore alternatives.

For players appreciating mechanical elegance enhanced by committed thematic execution, comfortable with moderate volatility and cascade-dependent feature access, and entertained rather than annoyed by comedic absurdism, Invaders from the Planet Moolah remains a genuine classic within the cascading reels category—the kind of slot that earns player loyalty through personality rather than merely promising mathematical outcomes.

Frequently Asked Questions

What is Invaders from the Planet Moolah? Invaders from the Planet Moolah is a five-reel, 25-payline video slot developed by WMS Gaming (now Light & Wonder) released in July 2013. The game features cascading reels mechanics where winning symbols are beamed away by alien cow-piloted UFOs, allowing new symbols to fall into place for potential consecutive wins. Its humorous premise involves extraterrestrial bovines invading a Midwest farm and abducting Earth livestock.

What is the RTP of Invaders from the Planet Moolah? RTP varies by configuration, ranging from approximately 92.97% to 96% depending on operator implementation. Online versions typically offer 96% RTP at industry average, while some land-based and alternative configurations may operate at lower rates. Verification through game rules or casino information is recommended before real-money play.

What is the maximum win in Invaders from the Planet Moolah? The maximum single-symbol payout is 3,750 coins (750× line bet) for five Jackpot symbols. The game also imposes a $250,000 maximum payout ceiling. Practical maximum win potential may exceed single-symbol calculations through extended cascade sequences accumulating multiple wins within a single spin.

How do the cascading reels work? When winning combinations form, contributing symbols are “beamed up” by the hovering UFOs and disappear. Remaining symbols cascade downward, with new symbols dropping from above to fill the grid. The game re-evaluates for additional wins, potentially creating chain reactions of consecutive payouts from a single stake. This process continues until no new wins form.

How do I trigger free spins? Free spins (the Invasion Feature) activate when four or more consecutive cascading wins occur within a single spin. The cascade meter tracks consecutive wins: 4 cascades award 7 free spins, 5 award 10, 6 award 15, 7 award 25, and 8+ award 50 free spins. The feature can also trigger randomly at any spin’s conclusion, awarding 7 free spins.

Can free spins be retriggered? Yes. Achieving four or more consecutive cascades during free spins awards additional spins according to the same allocation table. Extended retrigger chains can theoretically generate substantial free spin totals.

What is the volatility of Invaders from the Planet Moolah? The game features low-to-medium volatility, delivering relatively frequent modest wins rather than rare large payouts. The cascading mechanic enhances hit frequency by creating multiple winning opportunities per spin.

What symbols should I watch for? The Jackpot symbol offers the highest standard payout. Three cow wild symbols (white, brown, black-and-white) substitute for all symbols and appear on reels 2-5, frequently in stacked configurations. Five character symbols (Grandpa, Grandma, Man, Cowgirl, Dog) share mixed-payout functionality—any combination of these five appearing five times awards 500 credits.

How do the wild symbols work? Three visually distinct cow wilds function identically, substituting for all standard symbols. They appear exclusively on reels 2, 3, 4, and 5 (never on reel 1) and frequently appear stacked, covering multiple reel positions for enhanced win potential.

What is the betting range? Minimum bet is $0.25 (all 25 paylines at $0.01 denomination). Maximum bet is $125 (all 25 paylines at $5.00 denomination). Line denomination options range from $0.01 to $5.00.

Is there a jackpot in Invaders from the Planet Moolah? The original version contains no progressive or fixed jackpot feature—the “Jackpot” symbol is simply the highest-paying standard icon at 750× line bet. Sequel versions (Invaders Attack, Journey to Planet Moolah) do include progressive jackpot access.

Can I play Invaders from the Planet Moolah on mobile? Yes. HTML5 architecture ensures compatibility across smartphones, tablets, and desktop browsers. The game adapts responsively to various screen sizes and supports both portrait and landscape orientations with touch-optimized controls.

Who developed Invaders from the Planet Moolah? WMS Gaming developed and released the game in 2013. WMS was acquired by Scientific Games in October 2013 for $1.5 billion and fully merged in 2016. Scientific Games rebranded as Light & Wonder in 2022, maintaining WMS as an active brand.

Are there sequels to Invaders from the Planet Moolah? Yes. The franchise includes Invaders Return from the Planet Moolah (introducing the Unicow feature and up to 300 free spins), Invaders Attack from the Planet Moolah (HD update with enhanced wheel bonuses), and Journey to the Planet Moolah (latest entry with expanded specialty cows and progressive jackpot access).