AFK Airport Security takes the queue at an airport checkpoint and turns it into a Nolimit City slot, complete with flashing scanners, a security team with too many questions and the studio’s usual dark humour. Above the grid of five reels and three rows (243 ways to win) runs a feature meter with twelve travel-themed features, from Turbulence to Lithium-ion Batteries, and several can switch on in the same spin.
The game returns 96.07% and tops out at 19,693x the bet. Three or more Bonus symbols open the free spins, which come in three classes, Economy, Business and First, separated by how many features they carry from the first spin.
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How Often AFK Airport Security Pays
Nolimit City publishes more of the maths than most studios, and these four figures are the ones that shape a session:
| Figure | Nolimit City’s number | What it means at the reels |
|---|---|---|
| Hit frequency | 23.94% | About one spin in four returns something |
| Free spins | 1 in 278 spins | An average gap; any stretch can bring none, one or several |
| Top win | 19,693x the bet | Odds of 1 in 11.7 million spins |
| RTP | 96.07% | 3.93 of every 100 units staked stay with the game over the long run |
Most of those one-in-four wins are small; the larger amounts come when features stack on top of each other. The top win has a hard ceiling that the studio calls the Captain’s Cap: once a round’s total passes 19,693x, the round stops and pays exactly that. At £5 a spin, the top stake a UK-licensed casino takes from anyone 25 or older, the cap is worth £98,465; at the £2 limit for adults under 25 it is £39,386. Outside the UK, Nolimit City’s stakes go from €0.20 to €100.
The Twelve Features on the Meter
Feature symbols land in the meter above the reels, and each one switches on its feature for that spin. Some clear weak symbols away, some add wilds, and some split symbols so that one position counts twice:
| Feature | What it does |
|---|---|
| Quarantine | One or two low symbols stop appearing on the reels |
| Full Body Scanner | Every copy of one or two low symbols becomes a single high symbol |
| Not My Bag | Three to six mystery symbols land and all reveal one paying symbol |
| Arm Slides | Every wild on the grid expands to cover its reel |
| Class Upgrade | One paying symbol gets a x3, x5, x8 or x10 multiplier wherever it sits |
| Extra Seat Space | Every copy of one paying symbol splits in two |
| Full Row Booking | One to three whole reels split their symbols in two |
| Lithium-ion Batteries | One or two symbols become wilds and the symbols around them split |
| Turbulence | Symbols outside a win are shuffled, keeping their multipliers and size |
| “Random” Security Search | One to three paying symbols become wilds |
| Air-Mile Multiplier | All wins on the spin are multiplied by x3, x5, x8 or x10 |
| Connecting Flight | Wins pay in both directions |
The features add up rather than compete. A spin that splits symbols and also lands Air-Mile Multiplier pays on the extra ways first and then multiplies the total, which is how a quiet-looking grid can turn into one of the game’s bigger results.
Economy, Business or First Class Spins
The number of Bonus symbols decides the class. Each class starts with 7 free spins; what changes is how many features are switched on from the first spin and stay on until the last:
| Bonus symbols | Free spins round | Features active from the start |
|---|---|---|
| 3 | Economy Class Spins | 1 |
| 4 | Business Class Spins | 2 |
| 5 | First Class Spins | 3 |
The rounds also grow while they run. Every new feature that switches on during the free spins adds one more spin and keeps working until the round ends, so a round that keeps collecting features gets longer and stronger at the same time. First Class has the head start, with three features working before any others join.
Boosters and the Mile High Club Buys
Nolimit City’s standard build offers three paid extras alongside the normal spin. The Bonus Booster costs 1.4 times the bet and guarantees a Bonus symbol on the second reel. The 3 Mile High Club costs 12 times the bet and guarantees at least three features on the spin, and the 12 Mile High Club costs 4,500 times the bet and switches on all twelve at once.
Bonus buys are not sold in every market, so at some casinos the Mile High Club options are not on the screen and every bonus has to land on the reels.
What the Average Wait for Free Spins Costs
With free spins landing once in 278 spins on average, the cost of that wait is a practical way to size the game. The table works it out at the full 96.07% and at 92.05%, the lowest of the three versions casinos can choose; the third version, 94.06%, sits between them.
| Stake per spin | Staked over 278 spins | Kept at 96.07% | Kept at 92.05% |
|---|---|---|---|
| 10p | £27.80 | £1.09 | £2.21 |
| 50p | £139 | £5.46 | £11.05 |
| £1 | £278 | £10.93 | £22.10 |
| £2 | £556 | £21.85 | £44.20 |
| £5 | £1,390 | £54.63 | £110.51 |
At 92.05% that wait costs about twice as much, and the reels look exactly the same. The game’s information screen at each casino names the version that casino runs. These are averages, too: a little over a third of 278-spin stretches pass without any free spins, while about a quarter bring two or more.
How It Compares With Other Feature-Heavy Slots
The other Nolimit City game in our catalogue is Outsourced 2: Balkan Engineering, listed at 96.04% with an 11,111x top on a 4×5 grid of 625 ways, whose bonus rounds are called Print Spins and Tilt Spins. AFK Airport Security has the higher top, and its twelve random features can switch on during ordinary spins as well as in the bonus. The Nolimit City slots page gathers both.
For a far bigger ceiling built the same way, from modifiers piling up inside a bonus round, Relax Gaming’s Money Train 4 goes up to 150,000x the stake with 21 modifier symbols in its Money Cart round, at 96.10%. Our high-volatility slots page sets these games against the wider group, from long-wait giants to games with a lower top.
Frequently Asked Questions
By how many features they start with. Three Bonus symbols give Economy Class with one, four give Business Class with two and five give First Class with three. Each round has 7 spins and gains one more for every new feature that switches on.
Nolimit City puts it at 1 in 11.7 million spins. The win is also a hard cap: the round ends as soon as its total reaches 19,693 times the bet.
No. That is the full version, and a casino can choose 94.06% or 92.05% instead; the game’s own information screen names the one it uses.
Nolimit City supplies the game to casinos, and each casino picks its own titles, so check a casino’s game list before you sign up. The Mile High Club buys are not offered everywhere, because some markets do not allow bonus buys.
Yes. The demo above this review needs no account and no money, and its credits are worth nothing in cash, so it is an easy way to watch the feature meter and the three classes at work.
Staying in Control Between Bonuses
Twelve features flashing on a meter can make the next spin feel like the one that matters, and that is the moment a stopping point chosen before the session earns its keep. UK-licensed casino accounts come with spending caps, time reminders and cooling-off breaks, which do the most good when switched on in advance.
GamStop is free and shuts a player out of online gambling with companies licensed in Great Britain in one step. Anyone who would rather talk it through can call the National Gambling Helpline, which GamCare keeps open at all hours without charge: the number is 0808 8020 133. AFK Airport Security, like every slot, is strictly for over-18s.
