Steam Engine Riches is a slot that transports us to a captivating steampunk world, set inside a gigantic industrial machine overflowing with gears, levers, and vintage technology. This slot was developed by Mondoplay and released on July 22, 2025.
The atmosphere is thick with steam, metal, and mystery, with graphics that combine mechanical details and a meticulously crafted artistic touch. The design is immersive, perfect for lovers of retro-futuristic settings. Among the main symbols are: Antique Book (likely associated with manuals or engineering projects), Glasses/Binoculars (a classic inventor's gadget), Hourglass (represents time, a strong thematic element), Work Glove (symbol of action and manual ingenuity). Each of these symbols contributes to the game's narrative universe, making every spin part of a story.
The Wild is represented by a steampunk hat adorned with optical lenses and a pressure gauge. It substitutes for all standard symbols to complete winning combinations. When appearing on the center reel (reel 3): expands vertically to fill the entire reel, triggers a random multiplier from 2x to 10x. If you don't get an instant win, it stays active for a free respin. During the respin, a red-haired woman dressed as an engineer/inventor appears, adding character and an interesting narrative touch to the gameplay.
The safe acts as a mystery symbol: after the reels stop, it transforms into one of the regular symbols on the screen, helping to create winning combinations. A simple yet effective mechanism to keep the excitement high with every spin.
The Bonus symbol is a gear surrounded by blue electricity inside a sphere. If 6 or more appear, you enter the "Respin Bonus" style Bonus Game.
When the steampunk hat Wild appears on reel 3: it expands vertically to fill the entire reel and triggers a random multiplier from 2x to 10x. If you don't get an instant win, it stays active for a free respin.
If 6 or more Electric Gear symbols appear, you enter the "Respin Bonus" style Bonus Game: you receive 3 respins, each new bonus symbol that appears resets the respins to 3. It is possible to unlock fixed prizes (Classic Bonus): Mini, Minor, Major. This bonus introduces a high-potential win mechanic, with an experience that becomes more intense as the screen fills. When 15 gears appear on the screen, occupying all possible positions, you are entitled to the Grand Jackpot, with a sensational win.
Direct purchase of the Bonus Game is available for players who want immediate access to the jackpot mechanic.
During the spin, matching symbols in succession from left to right, regardless of their vertical position, generate a winning combination. This slot has 243 ways to win and no fixed paylines.
This slot has a Volatility of: Medium – offering a balance between frequency and value of wins. RTP (Return to Player): 96% – average to high, ideal for extended sessions.
Steam Engine Riches is a stylish slot with a good mix of classic and innovative elements. Its features, especially the expanding wild with a random multiplier and the bonus mode with electrified gears, offer dynamic gameplay full of surprises. Ideal for those who love steampunk aesthetics and are looking for a slot that combines visual engagement with high winning potential.
80-98%
medium-10.609
medium-25%
5000x
$500,000
$100
280 MB
280 MB
Yes
Yes
No
No
