Theme and Design The theme of the JackPot City casino is centered around a cityscape with towering skyscrapers, neon lights, and a vibrant nightlife. The game's design effectively captures the excitement and energy of urban casinos, transporting players to an immersive world filled with jackpotcity-casino.eu anticipation and possibility. As one navigates through various levels, symbols transform from humble everyday objects to high-stakes gaming machines.

Symbols A total of 20 unique symbols are part of this slot machine, including traditional card values (9-Ace) accompanied by a selection of city-themed icons: a city bus, taxi cab, newspaper stand and so-called "VIP Car". Some of the latter are wild. All but six regular playing cards have varying payouts for combinations.

Payouts The payout structure is designed to reward players who accumulate high-value combinations quickly. Payout tables indicate that standard symbols pay up to 2500 times per spin while high-paying icons award anywhere from a low 50x, in case of the 'VIP Car', to as much as an incredibly generous 15000x your initial wager when playing with max line bet on a VIP car combination.

Wilds The game incorporates two types: stacked Wild and expanding symbols. A randomly placed row of Stacked Wild fills all reels but one, where that row starts with each spin and acts as wilds across any combination present in its designated reel position within the main grid area. On top of it – if there’s at least four such stacks appearing (thus requiring specific arrangement which doesn't usually occur), an expanding special icon spreads its 'position' to cover adjacent spaces – making wild on every where available slot between each Wild stacked along with initial row placement rule mentioned before so effectively creating larger payouts potential.

Scatters In addition, three "Bonus" icons placed anywhere across the reels unlock Jackpot City Free Spins Feature – but no free spins bonus feature exists here since such symbol has special property named scatter that does nothing else except provide only possibility described above as an access pathway unlocking a different mode or additional benefit not available inside this reviewed casino slot.

Bonus Features Since we now understand the "scatters" role fully, let's go over other notable aspect called – Bonus Spins and their actual trigger. Players can get one of these two types (either progressive jackpot tied with total spent amount + RTP factor plus some extra rewards for active stakes placed OR fixed sum) as follows:

• Progressive Jackpot: If there were 5 'VIP' icons, all located on the last row within main area during playtime then at end another randomly generated Stacked Wilds was appearing – it expands instantly across those initial five creating more combination possibility giving also some other advantages depending current active bet selected but since its progressive we cannot know actual jackpot amount prior attempting.

• Fixed Jackpot Sum (named as 'Jackpot City'): Three Scatter/Bonus icons activate free spins round with 100 or 200 rounds per activated option, depending whether progressive is in the list (otherwise it's fixed at lower value), all winning combinations made during these extra chances counting towards bonus cash prize rather than actual jackpot since no one wins more there.

Free Spins After three Bonus Scatters appear on a pay line they trigger free spins round that can last anywhere from 100 to as many as 200 rounds. During this period, players gain access to potential winnings based purely off results within their given time frame without wagering limitations applied previously limiting them throughout game sessions.

RTP This casino slot maintains an RTP percentage at a high level of approximately 96.52%.

Volatility The volatility level in JackPot City can be characterized as moderate, due to the combination of both large and small payouts being achievable via different route pathways across main grid areas during regular playtime without forcing too much reliance towards max bets setup alone.

Betting Range A total six bet levels allow flexibility from low (£0.10) minimum to high £2.5 maximum with respective limits ranging between x20-625.

Max Win Although detailed payout tables show an incredible potential of 150,000x return for a VIP car win under optimal circumstances using max possible line stake at given time period; actual highest recorded value from playing on 'VIP Car' combination reportedly reached £1.5M+, according some independent sources though no official verification done so far exists due ongoing legal issues surrounding reported wins.

Gameplay Players can choose either to play manually via traditional spin button interface, or by using an optional auto-spin feature allowing up to a set number of consecutive spins (with customizable bet increment settings). The auto-play option also grants access for players having a fixed loss limit – in order protect themselves against excessive losses when things aren't going well.

Mobile Play JackPot City casino can be played across mobile devices since the slot machine has been designed as cross-platform game allowing seamless experience over Android and iOS handsets alike.

Player Experience Overall, this Jackpot wins at lucky spins offers an exhilarating yet somewhat unpredictable gaming session characterized by high RTP combined with accessible betting options that provide a wide range of potential payout opportunities across multiple playthroughs due availability wild symbol expanding plus unique bonus feature in addition free spin round without limitations placed previously on what can be earned.

Overall Analysis In conclusion, our analysis reveals JackPot City casino has all the ingredients needed for success and will surely capture players' attention due not only to its great design but numerous other interesting features as discussed above which are quite impressive overall – although perhaps little overcomplicated in some sections of game mechanics that prevent novice newcomers being easily absorbed into world itself.

That is, with so much emphasis put on high rewards & unique extra chances it creates complex experience offering various paths towards win while maintaining a good level RTP balance yet still retaining certain aspects related risks due betting structures involved alongside relatively moderate volatility indicating average outcome distribution which generally might feel balanced for some players.