RTP
96.32%
Minimum bet
0.10
Slot type
Video Slots
Volatility
Medium
Reels
5
Progressive jackpot
No
Popularity
Maximum bet
100
Provider
Hacksaw Gaming
Bonus features
Yes
Paylines
14
Theme
Adventure
Steamrunners online slot game
Steamrunners takes players into a complex, high-altitude world where Victorian style meets mechanical fantasy. Hacksaw Gaming’s “fierce, fearless” Steamrunners travel “through skybound cities to glimmering sky courts and beyond” aboard “gas-powered gadgets and rogue airships”.
The action can be demanding, as major wins depend on uncommon multiplier combinations, though the polished steampunk design leaves plenty to the imagination. Play unfolds on a metallic grid of pipes, lights and cogs.
Steamrunners Theme, Design, and Core Mechanics Explained
Steamrunners uses a 5x4 grid with 14 paylines. Wins are evaluated from the leftmost reel and pay from left to right. Symbols range from familiar low-paying 10-A card royals to premium images of a telescope, scroll, hat, gramophone and glasses. Five-of-a-kind royal combinations pay 1x the stake, while a full premium combination awards between 2.5x and 5x the stake. Wilds substitute for all regular symbols and pay 10x when five form their own winning combination.
*The payout table below is based on a $1.00 bet.
| Symbol | 5 Matches | 4 Matches | 3 Matches |
|---|---|---|---|
 | 10x | - | - |
 | 5x | 2.5x | 1x |
 | 4x | 2x | 0.8x |
 | 4x | 2x | 0.8x |
 | 2.5x | 1.2x | 0.5x |
 | 2.5x | 1.2x | 0.5x |
 | 1x | 0.5x | 0.2x |
 | 1x | 0.5x | 0.2x |
 | 1x | 0.5x | 0.2x |
 | 1x | 0.5x | 0.2x |
 | 1x | 0.5x | 0.2x |
The original review particularly praised the slot’s steampunk style and intricate artwork. Its presentation may bring to mind a blend of the animated films Atlantis and Treasure Planet, with a city suspended among the clouds. An adventure-themed soundtrack enhances the airborne atmosphere.
Top Casinos to Play Steamrunners:
Key Features of Steamrunners: The Wild Gas Canister Modifiers
Spreading Gas Canister symbols drive much of the excitement and offer a path toward the 10,000x potential. A single base-game spin can land only one Gas Canister. The mechanic reflects Hacksaw Gaming’s fondness for spreading features, but this version can expand in multiple directions:
- Green Gas Canister: When it lands, the canister spreads horizontally and vertically. It turns itself and nearby low-paying symbols into wilds when they contribute to a winning combination. The spread can continue if newly created wilds or low-paying symbols connect with symbols that have already changed.
- Purple Gas Canister: This more powerful version transforms itself and every low-paying symbol across the grid into wilds, but only when those symbols help form a win.
- Multiplier Power: Wilds created by a canister may randomly receive a multiplier between x2 and x200. Any existing wild hit by a canister also gets a x2 multiplier. If several multipliers apply to one win, they are combined before the payout is calculated.
The Skybound Bonus Rounds
In Steamrunners, the main feature routes lead to three different Free Spins bonus rounds:
Sky City Bonus Game Landing 3 FS scatters starts this feature and awards 8 free spins. Sky City can add multiplier wilds that become sticky and stay in place for the duration of the bonus. Whenever a spreading Gas Canister affects one, its multiplier doubles, up to a maximum of x5,000.
Gaslight District Bonus Game Landing 4 FS scatters triggers this mode and awards 10 free spins. It keeps Sky City’s sticky-wild mechanics and adds a guarantee: at least one wild stays on the grid throughout the bonus.
Court of High Steam Hidden Epic Bonus Game The rarest mode, with the greatest potential rewards, unlocks when 5 scatters land in the base game and awards 10 free spins. This “Hidden Epic” feature maintains the suspense by guaranteeing one Gas Canister on every free spin.
Note: In all three bonus rounds, landing 2 or 3 scatters awards an extra +2 or +4 free spins, respectively.
How to Approach Wins in the Steamrunners Slot
Make the Most of Gas Canister Spreads
- Look out for Gas Canister symbols
Gas Canisters are at the heart of Steamrunners: they spread through low-paying symbols or wilds and turn them into wilds that may carry multipliers. The review highlights landing these canisters as a key part of pursuing larger wins. - Watch for ways to build multipliers
Wilds created by a Gas Canister may have multipliers from x2 to x200.
During free spins, another canister doubles those multipliers, up to a limit such as x5,000. One approach is to leave moderate wilds on the grid, giving later canisters a chance to increase their values.
Choose the Free Spin / Bonus Mode That Suits You
- Sky City vs Gaslight District vs Court of High Steam
In the free-play comparison, Gaslight District came out ahead of Sky City among the two feature-buy options. Its 200x cost was considered high, but the wins reported were proportionally larger. Sky City, on the other hand, was said to deliver mostly smaller wins relative to its price.
The review also notes that Court of High Steam, despite its largest possible wins, is more likely to be reached through the feature buy that guarantees more Free Spins: Gaslight District.
Steamrunners Slot Alternatives
- Pirots 4: If you enjoy Steamrunners’ cartoon-inspired look but are after something different, consider the latest Pirots release, Pirots 4 by ELK Studios. Its 10,000x win potential is lower, but cascading reels and a Feature Buy offer other ways to keep the action going.
- Deck of Scurra: For another slot with a Victorian feel, try Deck of Scurra by Print Studios. This high-volatility game has a maximum win potential of 20,000x and an RTP of 96.09%, appealing to players looking for a different theme and feature mix.
Our View and Final Verdict
In Evan Carrington’s Casino Ideal review, Steamrunners is portrayed as a successful return to brass-filled steampunk. Hacksaw Gaming builds a mechanical world around “fierce, fearless” characters on a high-flying fantasy adventure full of gadgets. Its strong audiovisual presentation draws players into a sky-high landscape of pipes and cogs.
With Steamrunners, Hacksaw Gaming has crafted an entertaining slot centred on spreading mechanics. The feature stands out because it can expand in multiple directions, and transformed wilds may reveal multipliers as high as x200. Sticky-wild multipliers in the two lower-tier bonus rounds can also double up to x5,000, giving those features considerable potential.
The key drawback is that the biggest wins rely heavily on multiplier combinations that may be uncommon. This can make the game feel demanding. While a maximum win of 10,000x is theoretically possible, this slot is better suited to thrill-seekers who are comfortable with high risk and high reward than to anyone looking for a reliable way to profit.
Evan Carrington brings more than 12 years of experience in the iGaming industry, with a focus on reviewing online casinos, assessing slot games and examining player safety. Their work covers casino licensing, RTP, volatility, bonus terms and withdrawal policies. Drawing on practical testing and independent research, Evan provides clear, evidence-based reviews to help players understand gambling platforms, their features and possible risks.
