King of Atlantis (IGT)

King of Atlantis represents IGT’s ambitious interpretation of humanity’s most enduring lost civilization myth, transporting players to the legendary underwater kingdom ruled by Poseidon, Greek god of the sea. Released in May 2017, this mythology-themed video slot distinguishes itself through an unusual 5×5 reel configuration, delivering 40 fixed paylines across 25 symbol positions. The game’s defining characteristic lies in its innovative Gigantic Wild system, where Poseidon himself can expand to cover two full reels simultaneously—a visual spectacle capable of producing substantial winning combinations. Players exercise unprecedented control through adjustable Wild frequency, selecting between 20, 40, or 60 Wilds per session at corresponding bet levels. The Poseidon Free Spins bonus awards 8 spins with triggering Wilds remaining locked in position throughout, creating potential for multiple fully Wild reels. With variable RTP ranging from 92.01% to 96.14% and contested volatility assessments spanning low to high depending on Wild configuration, King of Atlantis delivers a unique slot experience where player choice directly influences gameplay dynamics.

IGT: The Pioneer of Modern Slot Gaming

International Game Technology traces its origins to 1975 when William “Si” Redd, the son of a Mississippi sharecropper who began his gaming career at age 18 with a single pinball machine, founded A-1 Supply. Redd had previously worked as a Wurlitzer jukebox distributor before Bally Manufacturing hired him in 1967 to distribute slot machines throughout Nevada, where he earned the nickname “The Slot Machine King.” In 1976, Redd secured sole rights to Bally’s burgeoning video gaming business, channeling substantial resources into research and development that positioned A-1 Supply as a pioneer in video gaming technology.

The company underwent several transformations: renaming to SIRCOMA in 1979 (an acronym for “SI Redd COin MAchines”), incorporating as International Game Technology in 1980, and completing a public offering on NASDAQ in October 1981. Annual sales escalated from under $3 million in 1975 to over $61 million by 1982. That year, approximately 9 percent of Nevada’s gambling machines were video-based, with IGT commanding 90 percent of that market segment. The company’s timing proved fortuitous—in 1983, Nevada machines surpassed table games in revenues for the first time, ushering in an era of unprecedented opportunity for slot manufacturers.

IGT’s innovation trajectory accelerated with the 1986 launch of Megabucks, the world’s first wide-area progressive jackpot system connecting slot machines across Nevada casinos via telephone lines and a central computer. This revolutionary system enabled multimillion-dollar prize pools unprecedented in slot gaming history. By 1988, Megabucks had expanded to over 30 casinos, propelling IGT to 60 percent of Nevada’s slot market share. The company joined the NYSE in January 1991, acquired UK fruit-machine manufacturer Barcrest Gaming in 1998, and continued aggressive expansion through acquisitions including Silicon Gaming, Anchor Gaming (securing Wheel of Fortune rights), and Acres Gaming.

The modern IGT emerged through GTECH’s April 2015 acquisition of the original International Game Technology for $6.4 billion, comprising $4.7 billion in cash and $1.7 billion in assumed debt. The combined entity adopted the IGT name, establishing headquarters in London with offices in Rome and Las Vegas. IGT now operates as one of the world’s largest gambling technology companies, producing over 500 slot titles alongside lottery systems, electronic table games, and interactive gaming solutions. The company’s 2022 acquisition of iSoftBet for approximately €160 million expanded its iGaming content portfolio, while announced plans for 2024-2025 involve spinning off gaming operations for merger with Everi under Apollo Global Management ownership.

Technical Specifications

Parameter	Specification
Developer	IGT (International Game Technology)
Release Date	May 2017
Game Type	Mythology/Underwater-Themed Video Slot
Reel Configuration	5 reels × 5 rows
Paylines	40 (fixed)
RTP	92.01% – 96.14% (variable)
Volatility	Medium-High
Minimum Bet (20 Wilds)	£0.40 / €0.40 / $0.40
Minimum Bet (40 Wilds)	£0.65 / €0.65 / $0.65
Minimum Bet (60 Wilds)	£0.90 / €0.90 / $0.90
Maximum Bet (20 Wilds)	£800 / €800 / $800
Maximum Bet (40 Wilds)	£1,300 / €1,300 / $1,300
Maximum Bet (60 Wilds)	£1,800 / €1,800 / $1,800
Maximum Win	25,000,000 coins
Top Symbol Payout	250× line bet (Mermaid, 5-of-a-kind)
Wild Symbol	Poseidon (reels 2 and 4; 2 reels wide; expandable)
Bonus Symbol	Trident (reel 1 only)
Free Spins	8 (non-retriggerable, sticky Wilds)
Jackpot	Non-progressive
Gamble Feature	Not available
Platform	Desktop, Mobile, Tablet
Mobile Optimization	Fully optimized

The Atlantis Legend: Plato’s Enduring Myth

The legend of Atlantis originates from the works of Greek philosopher Plato, written around 360 BCE in his dialogues Timaeus and Critias. Plato describes Atlantis as a powerful island nation located “beyond the Pillars of Hercules”—the ancient name for the Strait of Gibraltar—making it ostensibly positioned in the Atlantic Ocean. According to the narrative, the island surpassed Libya and Asia Minor combined in size, ruled by descendants of Poseidon, god of the sea, and his mortal wife Cleito.

Plato portrays Atlantis as an advanced, fabulously wealthy civilization featuring concentric rings of land and water surrounding a grand central palace. The Atlanteans developed sophisticated engineering, naval capabilities, and governed through ten rulers descended from Poseidon’s lineage. Initially, the civilization thrived under strict moral codes, enjoying unprecedented prosperity and power. However, as generations passed, the rulers grew corrupt, greedy, and power-hungry, eventually launching military campaigns to conquer neighboring Mediterranean lands. Their armies subdued territories from Africa to Egypt and Europe to Etruscan Italy before an alliance led by ancient Athens drove them back.

The divine punishment for Atlantean hubris proved catastrophic: earthquakes and floods destroyed the entire civilization in a single day and night, submerging the island beneath the sea forever. Plato likely created this narrative as philosophical allegory—a moral warning about the dangers of corruption, greed, and abandoning virtue. Athens, portrayed as the victorious defender of liberty, represents Plato’s ideal society from The Republic, while Atlantis symbolizes the consequences of moral decay.

Most scholars consider Atlantis purely fictional, a literary device for exploring philosophical themes rather than historical record. Aristotle, Plato’s student, reportedly joked about his teacher’s ability to conjure nations from thin air and destroy them. Nevertheless, the legend has captivated Western imagination for over 2,300 years, inspiring countless searches, theories placing Atlantis everywhere from Santorini to Antarctica, and extensive popular culture representation in films, literature, and—appropriately—slot gaming entertainment.

Theme, Visuals, and Audio Design

King of Atlantis immerses players in a luminous underwater kingdom that defies typical ocean-floor darkness. The reels occupy central screen position against a backdrop revealing Atlantis stretching into the distance—not a murky abyss but a bright, golden realm where sunlight rays pierce the waters, illuminating piles of gold coins scattered across the seabed. This visual approach emphasizes wealth and discovery rather than mystery and danger.

IGT employs cartoon-style graphics throughout, lending the game an accessible, almost whimsical aesthetic despite its mythological gravitas. The 5×5 grid presents symbols without traditional cell boundaries, creating a fluid visual where the 25 positions blend seamlessly into the underwater environment. This borderless design distinguishes King of Atlantis from conventional slot presentations, reinforcing the sensation of peering through water into a treasure-laden domain.

Symbol design draws exclusively from theme-appropriate imagery—notably absent are the generic playing card values (A, K, Q, J) that populate countless competing slots. Eight distinct symbols populate the reels: a red-haired Mermaid reminiscent of animated interpretations, a friendly Dolphin, a golden Crown studded with emeralds, an amethyst Ring, an ornate Harp, an ancient Greek Amphora (two-handled jar), a decorative Seashell, and a Patterned Stone bearing engravings. Each symbol features detailed artwork with navy blue backgrounds, maintaining visual consistency while enabling clear differentiation during rapid gameplay.

Poseidon himself serves as the Wild symbol—depicted as an older man with flowing white beard, golden crown, and his iconic trident. His visual presentation occupies significantly more screen real estate than standard symbols, appearing two reels wide and potentially expanding vertically to create the signature Gigantic Wild covering 10 symbol positions simultaneously. The Bonus symbol presents Poseidon’s trident independently, appearing exclusively on reel 1 as the gateway to Free Spins.

Audio design favors atmospheric immersion over continuous musical accompaniment. Unlike many slots maintaining background soundtracks throughout sessions, King of Atlantis operates in relative silence punctuated by meaningful sound effects. Adjusting Wild quantities triggers a resonant harp tone; significant wins produce celebratory audio; and achieving Gigantic Wild configurations rewards players with a pronounced “Poseidon!” vocal exclamation. This restrained approach prevents auditory fatigue during extended sessions while ensuring sound cues retain impact and significance.

Gameplay Mechanics and Betting Structure

King of Atlantis employs an unconventional 5×5 reel configuration—five reels spanning five rows—creating 25 visible symbol positions per spin. This expanded grid differs from IGT’s typical 5×3 arrangements, providing additional vertical space essential for the Gigantic Wild mechanic. Wins form across 40 fixed paylines, requiring consecutive matching symbols from leftmost reel positions. Standard combinations demand three or more identical symbols; premium Mermaid and Dolphin symbols pay beginning from just two matches.

The betting structure introduces a unique player-controlled variable: adjustable Wild frequency. Three tiers exist, each affecting both cost per spin and Wild symbol density on the reels:

20 Wilds Configuration:

• Minimum bet: £0.40 (line bet £0.01 × 40 paylines)
• Maximum bet: £800 (line bet £20 × 40 paylines)
• Base-level Wild frequency

40 Wilds Configuration:

• Minimum bet: £0.65
• Maximum bet: £1,300
• Enhanced Wild frequency (approximately 62.5% increase over base)

60 Wilds Configuration:

• Minimum bet: £0.90
• Maximum bet: £1,800
• Maximum Wild frequency (triple base level)

This system effectively allows players to purchase volatility—higher Wild counts increase both spin cost and potential reward magnitude. The 60-Wild configuration at maximum stakes enables truly substantial wins but requires corresponding bankroll commitment. Each configuration change produces an audible harp sound confirming the adjustment.

Several features common to modern slots remain absent from King of Atlantis. No Autoplay functionality exists; each spin requires manual activation. No Gamble feature offers win-doubling opportunities. No win multipliers enhance payouts. These omissions represent deliberate design choices, directing player focus toward the Gigantic Wild and Free Spins mechanics rather than dispersing attention across numerous secondary features.

Paytable and Symbol Values

King of Atlantis employs a streamlined paytable featuring eight theme-exclusive symbols plus Wild and Bonus icons. All payouts calculate as multiples of line bet, with combinations forming left-to-right across consecutive reels.

Premium Symbols:

The red-haired Mermaid commands the highest regular payouts, delivering rewards beginning from just two symbols—a relatively generous threshold rarely encountered in contemporary slots. Five Mermaid symbols across a payline return 250× the line bet, representing the game’s maximum standard symbol payout. The Dolphin occupies second position in the value hierarchy, similarly paying from two symbols with values approximately half those of the Mermaid.

Mid-Value Symbols:

The golden Crown and amethyst Ring populate the middle tier, offering moderate returns for three, four, and five-symbol combinations. These ancient artifacts symbolize Atlantean wealth and nobility, providing consistent mid-range payouts that sustain bankrolls between premium symbol appearances.

Low-Value Symbols:

The Harp, Amphora, Seashell, and Patterned Stone occupy lower paytable positions, each returning minimum 5× line bet for three-of-a-kind combinations. While individually modest, these symbols appear frequently across the 5×5 grid, contributing to overall hit frequency and session sustainability.

Special Symbols:

The Wild symbol (Poseidon) carries no independent payout value—two or more Wilds alone produce no return. Wild symbols function exclusively as substitutes, replacing all regular symbols to complete or extend winning combinations. This restriction prevents Wild-only wins while maximizing substitution utility across multiple paylines simultaneously.

The Bonus symbol (Trident) similarly offers no direct payout. Appearing exclusively on reel 1, the Trident serves solely as Free Spins trigger when combined with Wild symbols elsewhere on the reels.

Gigantic Wilds Feature

The Gigantic Wild mechanic distinguishes King of Atlantis from conventional slot offerings, delivering visual spectacle and substantial win potential through Poseidon’s oversized presence. Understanding this feature’s operation proves essential for maximizing gameplay appreciation and strategic approach.

Poseidon Wild symbols appear exclusively on reels 2 and 4—never on reels 1, 3, or 5. Each appearance spans two reels wide: reel 2 Wilds extend rightward to cover reel 3; reel 4 Wilds extend to cover reel 5. This base configuration already exceeds typical Wild symbol dimensions, guaranteeing dual-reel coverage with every Wild appearance.

The Gigantic Wild escalation occurs when Poseidon expands vertically to fill all five rows simultaneously. A Gigantic Wild on reels 2-3 creates a 2×5 block of Wild symbols—10 positions transformed into substitutes. Should both reel 2 and reel 4 produce Gigantic Wilds simultaneously, four full reels (2, 3, 4, and 5) become Wild, leaving only reel 1 displaying regular symbols. This configuration virtually guarantees maximum payouts across numerous paylines, as any symbol appearing on reel 1 finds matching Wild substitutes across all subsequent positions.

Gigantic Wild frequency correlates directly with selected Wild quantity. Players utilizing 60 Wilds encounter these expanded configurations more frequently than those operating at 20-Wild base levels, though the relationship isn’t strictly proportional—increased cost partially offsets enhanced opportunity. The vocal “Poseidon!” exclamation accompanying Gigantic Wild appearances serves both as celebration and notification, ensuring players recognize these significant occurrences even during rapid play.

Poseidon Free Spins Bonus

The Free Spins bonus represents King of Atlantis’s primary feature round, triggered through specific symbol combination rather than traditional Scatter accumulation. Activation requires simultaneous appearance of the Trident Bonus symbol on reel 1 AND at least one Poseidon Wild symbol anywhere on the remaining reels during the same spin. This dual-condition requirement creates narrower triggering windows than standard three-Scatter mechanics.

Successful triggering awards 8 Free Spins—a fixed quantity without variation based on triggering symbol count or subsequent accumulation. The feature’s distinguishing characteristic lies in its sticky Wild mechanic: all Wild symbols present during the triggering spin remain locked in their positions throughout all 8 Free Spins. This persistence transforms the bonus round’s value proposition significantly.

Consider triggering scenarios and their implications:

Single Wild Trigger: If a standard 2×1 Wild on reel 2-3 triggered the feature, those two positions remain Wild for all 8 spins. Every subsequent spin effectively operates with guaranteed Wild coverage on reels 2 and 3, substantially improving winning combination probability.

Gigantic Wild Trigger: If a Gigantic Wild covering reels 2-3 (all 10 positions) triggered the feature, those 10 positions remain Wild throughout all 8 spins. Regular symbols need only appear on reels 1, 4, and 5 to form winning combinations.

Double Gigantic Wild Trigger: The optimal scenario occurs when Gigantic Wilds appear on both reels 2-3 AND reels 4-5 during the triggering spin. This creates 20 locked Wild positions—four fully Wild reels—for all 8 Free Spins. Only reel 1 displays regular symbols, virtually guaranteeing maximum payouts on every spin as any reel 1 symbol finds Wild substitutes across all subsequent positions.

One significant limitation applies: Free Spins cannot be retriggered during the bonus round. Additional Trident and Wild combinations appearing during the 8 spins produce no supplementary awards. This constraint bounds maximum feature value but ensures predictable bonus duration.

Mathematical Model and Volatility Analysis

King of Atlantis presents a variable RTP ranging from 92.01% to 96.14%—a substantial 4.13 percentage point spread creating meaningful outcome variation depending on configuration. While not explicitly documented by IGT, evidence suggests RTP correlates with Wild quantity selection: higher Wild counts (40 or 60) likely deliver RTPs approaching the 96.14% ceiling, while base 20-Wild configurations may operate closer to 92.01%. Players should verify specific casino implementations before committing substantial stakes, as operators may deploy different RTP configurations.

The 96.14% maximum RTP positions King of Atlantis competitively against industry benchmarks, while the 92.01% minimum falls below commonly accepted standards. This disparity emphasizes the importance of Wild quantity selection—choosing 60 Wilds likely improves theoretical returns alongside practical Wild frequency increases.

Volatility assessment generates conflicting characterizations across various sources: some describe King of Atlantis as low volatility, others as medium, and still others as high variance. This inconsistency likely reflects the player-controlled Wild variable—20-Wild configurations may produce lower-volatility session patterns with moderate, regular wins, while 60-Wild configurations create higher-variance experiences featuring longer dry spells punctuated by substantial Gigantic Wild payouts. The adjustable Wild system effectively allows players to select their preferred volatility profile.

The maximum theoretical win reaches 25,000,000 coins, achievable through optimal Gigantic Wild configurations during Free Spins combined with maximum betting levels. At £1,800 maximum bet with 60 Wilds, theoretical maximum cash value approaches £250,000, though such outcomes require extraordinary confluence of favorable conditions.

Mobile Optimization and Platform Compatibility

King of Atlantis delivers full functionality across desktop computers, tablets, and smartphones through HTML5-based browser compatibility. The 5×5 reel configuration scales effectively to various screen dimensions, though the expanded grid presents more symbol positions than typical 5×3 layouts, potentially challenging visibility on smaller smartphone displays.

Touch interface adaptation replaces mouse-based controls with appropriately sized tap targets for bet adjustment, Wild selection, and spin activation. The absence of Autoplay functionality requires manual spin initiation on mobile devices, which some players may find repetitive during extended sessions but others prefer for maintaining engagement and control.

Cross-platform synchronization ensures account balances, bonus progress, and session data transfer seamlessly between devices. A player beginning a session on desktop can continue via smartphone without disruption, accessing identical game functionality regardless of access point.

Performance requirements remain modest despite the visual complexity of underwater environments and Gigantic Wild animations. Mid-range smartphones handle gameplay smoothly without notable lag or frame-rate degradation. Battery consumption falls within typical ranges for HTML5 slot gaming, enabling reasonable mobile session duration without rapid power depletion.

Bankroll Management Strategies

The tiered betting structure of King of Atlantis demands tailored bankroll approaches accounting for both base bet levels and Wild configuration selections. Each Wild tier creates distinct bankroll requirements:

20 Wilds Configuration (Conservative Approach):

• Minimum bankroll: 100× minimum bet = £40
• Standard bankroll: 200× minimum bet = £80
• Extended bankroll: 300× minimum bet = £120
• Recommended for: Bankroll preservation, longer session duration, lower variance preference

40 Wilds Configuration (Balanced Approach):

• Minimum bankroll: 150× minimum bet = £97.50
• Standard bankroll: 250× minimum bet = £162.50
• Extended bankroll: 350× minimum bet = £227.50
• Recommended for: Moderate risk tolerance, balanced win frequency/magnitude

60 Wilds Configuration (Aggressive Approach):

• Minimum bankroll: 200× minimum bet = £180
• Standard bankroll: 300× minimum bet = £270
• Extended bankroll: 400× minimum bet = £360
• Recommended for: Higher variance tolerance, pursuing Gigantic Wild potential, adequate bankroll reserves

The non-retriggerable Free Spins and medium-high variance profile suggest implementing strict session limits. Establishing loss limits at 60% of session bankroll prevents catastrophic depletion, while win targets of 200-300% of starting balance capture profitable sessions before variance reversal. The sticky Wild mechanic during Free Spins creates bonus round value concentration—patience awaiting these triggering combinations often determines session outcomes.

High-stakes players attracted by £1,800 maximum bets should note the corresponding volatility amplification. While theoretical maximum wins scale proportionally, so do potential loss rates. Conservative bet sizing relative to total bankroll remains prudent regardless of Wild configuration selection.

Comparison with Similar Slots

King of Atlantis occupies the mythology and underwater slot category alongside several notable competitors:

Lord of the Ocean (Novomatic): This Poseidon-themed slot shares thematic DNA with King of Atlantis but employs conventional 5×3 configuration with 10 paylines. RTP of 95.10% falls below King of Atlantis’s maximum. Features include expanding symbols during free spins rather than Gigantic Wilds, creating different gameplay dynamics. Lord of the Ocean offers simpler mechanics appealing to players preferring traditional formats.

Secrets of Atlantis (NetEnt): NetEnt’s interpretation presents a 5×4 grid with 40 paylines—similar payline count but different configuration. The Colossal Symbols feature allows 4×3 symbols appearing across reels 2-4, conceptually similar to Gigantic Wilds but with different positioning. RTP of 97.07% exceeds King of Atlantis’s maximum. Lower volatility profile suits different player preferences.

Ocean Magic (IGT): Another IGT underwater offering employing the company’s characteristic style. The Wild Bubble feature adds Wilds through expanding bubble mechanics rather than player-controlled Wild quantity. Similar visual approach but distinct feature sets create complementary rather than competing experiences.

Queen of Atlantis (Pragmatic Play): This counterpart title shifts focus from Poseidon to his aquatic realm’s queen. Features include wild multipliers up to 27× during free spins—a mechanic absent from King of Atlantis. Different volatility profile and feature structure appeal to players seeking multiplier-driven gameplay.

Atlantis: Cash Collect (Playtech): Part of Playtech’s Cash Collect series, this title emphasizes collect mechanics and jackpot tiers over Gigantic Wild configurations. Medium volatility with 96.25% RTP positions it competitively, though fundamentally different feature architecture serves distinct player preferences.

King of Atlantis differentiates through its player-controlled Wild quantity system—a mechanic absent from comparable titles. This customization enables individual volatility preference accommodation within a single game framework, representing meaningful innovation in the mythology slot category.

Strengths and Weaknesses

Strengths:

The adjustable Wild quantity system represents King of Atlantis’s most distinctive advantage, empowering players to customize volatility according to individual preference and bankroll circumstances. This player agency exceeds typical slot offerings where volatility remains fixed regardless of bet sizing.

Gigantic Wild mechanics deliver visual spectacle and substantial win potential when Poseidon expands to cover full reel columns. The possibility of four fully Wild reels during triggered Free Spins creates genuinely exciting bonus round potential unmatched by conventional wild mechanics.

Theme-exclusive symbols eliminating generic playing card values demonstrate commitment to immersive design. All eight regular symbols connect meaningfully to Atlantis mythology, maintaining thematic cohesion throughout gameplay.

The extensive betting range from £0.40 to £1,800 accommodates virtually any bankroll level, from casual entertainment-focused players to high-stakes gamblers pursuing maximum win potential. Few slots offer comparable flexibility.

Sticky Wild mechanics during Free Spins transform triggered configurations into persistent advantages across all 8 bonus spins. Optimal triggering conditions create genuinely lucrative feature rounds.

Weaknesses:

Variable RTP ranging from 92.01% to 96.14% creates uncertainty regarding actual return expectations. The 92.01% minimum falls below industry standards, potentially disadvantaging players operating at unfavorable configurations.

The absence of Autoplay functionality requires manual spin activation for every round—a significant inconvenience for players preferring automated session pacing. This omission appears increasingly anachronistic against modern slot standards.

Non-retriggerable Free Spins limit bonus round potential. Unlike many contemporary slots offering unlimited retrigger capability, King of Atlantis caps each bonus round at 8 spins regardless of subsequent symbol appearances.

Wild symbols producing no independent payouts reduce their standalone value. Two or more Wilds appearing without contributing to other symbol combinations return nothing—a restriction that occasionally frustrates players expecting Wild-based wins.

Single bonus feature reliance places substantial outcome weight on Free Spins triggering. The absence of secondary bonus rounds, pick-me features, or random base game enhancements concentrates value in a single, relatively difficult-to-trigger feature.

May 2017 release date positions King of Atlantis among aging slot offerings. While graphical quality remains acceptable, visual sophistication falls noticeably below 2024-2025 releases employing more advanced rendering and animation techniques.

Availability and Licensing

King of Atlantis distributes through IGT’s extensive operator network to licensed online casinos across numerous regulated markets. The game holds certifications from major regulatory authorities including the UK Gambling Commission and Malta Gaming Authority, enabling deployment at operators holding corresponding licenses.

Demo mode availability enables complete free-play experience across most hosting platforms. Players can familiarize themselves with Gigantic Wild mechanics, Free Spins triggering, and Wild quantity adjustments without risking real funds—advisable given the game’s unique systems.

Bonus compatibility typically follows standard slot contribution rates, though medium-high variance and substantial maximum bets may attract wagering requirement scrutiny from some operators. Players should verify specific bonus terms before attempting King of Atlantis gameplay during active bonus periods.

The game’s presence at major operator groups including BetMGM, FanDuel, and numerous European platforms confirms widespread availability. IGT’s 2015 merger with GTECH expanded distribution infrastructure, ensuring King of Atlantis reaches extensive global player populations through established channels.

Conclusion

King of Atlantis successfully translates ancient mythology’s most enduring lost civilization into engaging slot entertainment, leveraging IGT’s decades of gaming expertise to create genuinely distinctive gameplay mechanics. The adjustable Wild quantity system represents meaningful innovation, enabling players to customize their experience according to volatility preference—a level of control rarely encountered in slot gaming. Gigantic Wilds delivering Poseidon across two full reel columns create visual spectacle and legitimate win potential, while sticky Wild mechanics during Free Spins transform favorable triggering conditions into extended opportunity sequences.

The mathematical profile demands careful consideration: variable RTP spanning 92.01% to 96.14% creates meaningful outcome variation depending on Wild configuration, while medium-high volatility produces session patterns characterized by dry spells punctuated by feature-driven recovery potential. Players comfortable with variance who can implement appropriate bankroll management find genuine entertainment value alongside legitimate win opportunity. Those requiring consistent positive feedback may find extended base game sequences between Free Spins triggers frustrating.

Eight years following release, King of Atlantis maintains presence across major operator platforms—testament to enduring player interest despite visual aging against contemporary releases. For players seeking mythology-themed entertainment with unusual player agency, distinctive Wild mechanics, and substantial betting flexibility, King of Atlantis delivers an experience worthy of Poseidon’s legendary domain. The combination of theme execution, innovative features, and customizable gameplay positions IGT’s underwater offering among the more memorable entries in the crowded mythology slot category.

Frequently Asked Questions

What is the King of Atlantis slot? King of Atlantis is a mythology-themed video slot developed by IGT (International Game Technology), released in May 2017. The game features a 5×5 reel configuration with 40 fixed paylines, set in the legendary underwater kingdom ruled by Poseidon, the Greek god of the sea. Distinguished by its adjustable Wild quantity system and Gigantic Wild mechanics, the slot offers players unprecedented control over gameplay volatility.

What is the RTP of King of Atlantis? King of Atlantis features variable RTP ranging from 92.01% to 96.14%. Evidence suggests RTP correlates with selected Wild quantity—higher Wild counts (40 or 60) likely deliver returns approaching the 96.14% maximum, while base 20-Wild configurations may operate closer to 92.01%. Players should verify specific implementations at their chosen casino.

What is the maximum win in King of Atlantis? The maximum theoretical win reaches 25,000,000 coins. At maximum £1,800 bet levels with 60 Wilds selected, this translates to potential cash wins approaching £250,000. Achieving maximum payouts requires optimal Gigantic Wild configurations during Free Spins, combining four fully Wild reels with premium symbol appearances on reel 1.

What is the volatility of King of Atlantis? Volatility varies based on Wild quantity selection, generally characterized as medium-high. Lower Wild counts (20) produce more moderate volatility with regular smaller wins, while higher counts (60) create higher variance with longer dry spells punctuated by substantial Gigantic Wild payouts. This player-controlled volatility represents a unique game feature.

How do you trigger Free Spins in King of Atlantis? Free Spins trigger when the Trident Bonus symbol appears on reel 1 simultaneously with at least one Poseidon Wild symbol anywhere else on the reels during the same spin. Successful triggering awards 8 Free Spins with all triggering Wild symbols remaining locked in position throughout the feature duration.

What are Gigantic Wilds? Gigantic Wilds occur when Poseidon Wild symbols expand vertically to fill all five rows across their two-reel span. A standard Wild covers 2 reels horizontally; a Gigantic Wild covers 2 reels horizontally AND 5 rows vertically, creating 10 Wild positions simultaneously. In optimal scenarios, both reel positions (2-3 and 4-5) can display Gigantic Wilds, creating four fully Wild reels.

How does the adjustable Wild system work? Players select between 20, 40, or 60 Wilds per session. Higher Wild counts increase both cost per spin and Wild symbol frequency on the reels. 20 Wilds: £0.40-£800 bet range; 40 Wilds: £0.65-£1,300 bet range; 60 Wilds: £0.90-£1,800 bet range. This system allows players to customize volatility preference.

What is the betting range in King of Atlantis? Betting range varies by Wild configuration: 20 Wilds permits £0.40-£800 per spin; 40 Wilds permits £0.65-£1,300; 60 Wilds permits £0.90-£1,800. This extensive range accommodates casual players through high-stakes gamblers within a single game framework.

Is King of Atlantis available on mobile? Yes, King of Atlantis operates across desktop computers, tablets, and smartphones through HTML5 browser compatibility. The game adapts to various screen sizes with touch-optimized controls. All features function identically across platforms with seamless cross-device session synchronization.

Who developed King of Atlantis? IGT (International Game Technology) developed King of Atlantis. Founded in 1975 as A-1 Supply by William “Si” Redd, the company pioneered video gaming technology and introduced the first wide-area progressive jackpot system (Megabucks) in 1986. GTECH acquired IGT in 2015 for $6.4 billion, adopting the IGT name for the combined entity headquartered in London.

What symbols appear in King of Atlantis? Eight theme-exclusive symbols populate the reels: Mermaid (highest value, 250× for five), Dolphin (second highest), Crown, Ring, Harp, Amphora, Seashell, and Patterned Stone. Notably absent are generic playing card values—all symbols connect directly to Atlantis mythology. Poseidon serves as Wild; the Trident functions as Bonus symbol.

Does King of Atlantis have a progressive jackpot? No, King of Atlantis does not feature a progressive jackpot. Maximum wins are fixed based on symbol combinations and bet levels, capped at 25,000,000 coins. The game compensates through Gigantic Wild mechanics and sticky Wild Free Spins offering substantial non-progressive win potential.

Can Free Spins be retriggered in King of Atlantis? No, Free Spins cannot be retriggered during the bonus round. Each triggering awards exactly 8 Free Spins regardless of subsequent symbol appearances. Additional Trident and Wild combinations during the feature produce no supplementary awards.

Where can I play King of Atlantis? King of Atlantis distributes through IGT’s operator network to licensed casinos across regulated markets globally. Major platforms hosting the game include BetMGM, FanDuel, and numerous UK and European operators. Demo mode enables free-play access at most hosting sites. Players should select licensed, regulated operators appropriate to their jurisdiction.