Wild Wild West: The Great Train Heist Slot Review

Saddle up for a comic-book train robbery with four outlaws, four different Wild types and a safe-cracking bonus round. Wild Wild West: The Great Train Heist is a NetEnt video slot released on February 23, 2017, built on a 5-reel, 3-row grid with 10 fixed paylines, medium volatility and an RTP of 96.74%. The max payout is capped at 500x the bet, and the hit frequency sits at 22%.

The slot suits players who enjoy line-pay mechanics with a clear structure, a moderate risk profile and feature play where the Free Spins round can shift between four Wild behaviours. Stake range on the reference build is broad enough for both low-roller and higher-stake sessions, and the bonus logic is easy to follow from the very first spin.

Theme, Visuals and Atmosphere

The game leans into a hand-drawn comic-book Wild West setting. Four outlaws — a female gunslinger in a red hat, a one-eyed old bandit, a blond young rookie and a hulking brute with a knife — form the high-pay crew, while stylised card suits (spades, hearts, clubs, diamonds) cover the low-pay tier. The reels are framed by hanging oil lamps and desert cacti, and the soundtrack mixes saloon-style guitars with steam-train effects on wins.

Animations are restrained by modern standards but age well: symbol art is detailed, the Wild badge uses a loud purple-orange burst, and the Pick and Click safe has a satisfying reveal. The whole package is tuned for clarity rather than visual overload, which helps readability during fast autoplay sessions.

Gameplay, Bet Structure and Controls

Every round is played across 10 fixed bet lines, so the player adjusts the stake through two selectors rather than toggling lines on and off. The "LEVEL" selector sets the number of coins per line, and the "COIN VALUE" selector sets the value of each coin. Multiplying both gives the total bet per spin.

At level 1 and a coin value of R1, the total stake per spin works out to R10 across all 10 lines. Lower coin values bring the minimum stake down to around R1 per spin, while the ceiling reaches into the hundreds at max level and max coin value. The "MAX BET" button instantly pushes the bet to the highest configured level, and "AUTOPLAY" handles longer unattended sessions.

Wins pay only from the leftmost reel to the right in succession, and only the highest win per line is counted. Simultaneous wins on different lines are added together.

Symbols and Paytable

The paytable is split into four premium outlaw symbols and four card-suit low pays, with the Wild matching the top premium for maximum line value. Only three-, four- and five-of-a-kind combinations pay, and all values are shown in coins — the final cash win equals coins × coin value × bet level on that line.

The female outlaw and the Wild share the top line value at 500 coins for five of a kind, which is deliberate: it keeps a clean Wild-substitution chain without the Wild overshooting the best premium.

Wild Features and Free Spins

This is where Wild Wild West: The Great Train Heist pulls away from a standard 10-line NetEnt release. In the base game the Wild is a single static type, but the Free Spins round introduces a Wild Selector Wheel that randomly picks one of four Wild behaviours for the entire session.

The four possible Wild features are Regular Wild, Expanding Wild, x2 Multiplier Wild and Spreading Wild. Each one substitutes for every symbol except Scatter and Bonus, and each one keeps the same base coin values as the Regular Wild (25 / 80 / 500 for 3, 4 and 5).

Free Spins are triggered by three or more "7" Scatter symbols landing anywhere on the reels in either the main game or Free Spins themselves:

3 Scatters = 10 Free Spins 4 Scatters = 20 Free Spins 5 Scatters = 30 Free Spins

During Free Spins an Overlay Wild symbol also randomly lands on reels 1–3 on every spin, behaving identically to the active Wild feature and appearing on a position not already covered by a Wild. Scatter symbols are counted before any Overlay Wild or Wild feature is applied, so retriggers are fully possible. Additional Free Spins won during the session are added automatically without respinning the Wild Selector Wheel. Free Spins are played at the same bet level and coin value as the triggering round.

Pick and Click Bonus Round

The second feature is a simpler instant-win round. It is activated when three Bonus (safe) symbols land on reels 1, 3 and 5 in the main game only — this bonus cannot trigger inside Free Spins. Once active, the player clicks one of the three safes to reveal a coin prize, and the values of the two unopened safes are shown afterwards for transparency.

Only one prize is awarded per Pick and Click session, and the coin win range sits between x5 and x50 the total bet. The total from the Pick and Click is added to any wins from the round that triggered it.

Demo Mode and Practical Notes

Most licensed casinos offer a free-play build, and trying the Wild Wild West: The Great Train Heist demo before wagering real money is the cleanest way to test the feel of the Wild Selector Wheel and the 10-line structure without risk. The demo mirrors the math of the real-money version, so symbol frequency and feature triggers behave identically.

A few practical points worth keeping in mind. The Pick and Click only fires in the base game, so the safe symbol on reels 1, 3 and 5 is a base-game-only event. The Free Spins retrigger has no cap listed beyond the natural scatter requirement, and the Overlay Wild guarantees at least one extra Wild on the left side of the grid on every free spin — a key reason the Free Spins round does most of the heavy lifting on the RTP curve.

Players comparing the Wild Wild West: The Great Train Heist demo side-by-side with the real-money version will notice no behavioural difference beyond the balance type.

Payout Mechanics & Math Profile

The payout architecture of this slot is built around a classic left-to-right line-pay engine on a compact 5×3 grid with only 10 fixed lines. That is a small active surface: 15 visible positions, and each winning combination must start on reel 1 and run in sequence. This single fact is the biggest driver of how RTP flows through the game — there is no cluster mechanic, no scatter-pays, and no Megaways multiplication of ways.

Because only the highest win per line is paid, stacking identical symbols vertically across a reel does not increase the win on that line — it only increases the chance that the next line also connects. The value of vertical reel density is therefore indirect, and the main return driver is reel 1 symbol weighting: a premium symbol on reel 1 is the gatekeeper to every possible premium line, which is why the math team kept the top premium (female outlaw) and the Wild sharing the same 500-coin ceiling.

The Wild Selector Wheel is the single most interesting structural element. Four Wild behaviours on identical base pays mean the Wild's coin value is constant, but its effective hit footprint changes dramatically: an Expanding Wild multiplies vertical coverage on a reel, a Spreading Wild multiplies horizontal neighbours, an x2 Multiplier Wild doubles any line it completes, and the Regular Wild adds nothing beyond substitution. On a 3-row grid, Expanding and Spreading Wilds carry noticeably more RTP weight than the other two because every extra covered position on reels 1–3 directly converts into more of the 10 lines connecting.

The Overlay Wild on reels 1–3 during Free Spins is the clearest example of that reel-weighting logic: NetEnt placed the guaranteed extra Wild exclusively on the left side of the grid because that is where line completion begins. Adding a Wild to reel 5 would mostly top up existing wins, while adding one to reels 1–3 starts new ones.