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Gold Boom (Slingshot Studios) – Review & Demo Play
Gold Boom from Slingshot Studios play free demo version ▶ Casino Slot Review Gold Boom ✔ Return (RTP) of online slots on July 2026 and play for real money✔
Gold Boom: Slot Overview
Slingshot Studios pulls the core gameplay from Rabbit in the Hat 2 and drops it into a mining set-up in Gold Boom. The result feels like a reskin, but a tidy one, fronted by Doug Deep, a white-bearded prospector who rides shotgun above the reels. The 5x3 grid runs with 20 paylines, and mine carts trundle along a track overhead, ready to interact with wilds. It's a familiar mine shaft look, serviceable rather than flashy, but the feature framework carries the weight.
Stakes range from €0.20 to €40 per spin, with three RTP settings available and a default of 96.14%. Operators may also run 94.04% or 92.12%. Variance is high, so it can bump about like a minecart on rough tracks, but the top payout climbs to 5,650.4x the bet. The set-up uses 5 reels and 3 rows, and dynamite wilds can land on every reel, subbing for regulars while carrying their own payline value when five line up.
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Gold Boom Symbols & Paytable
Low pays run from 9 to A, paying 1x to 2x the stake for five of a kind. Premiums include skulls with hard hats, lamps, barrels, picks, canaries, and the miner, worth 5x to 10x for a full line. Dynamite wilds substitute for all regular pay symbols and have teeth of their own, returning up to 50x the bet for five on a payline. It's a clean ladder, with wilds doing plenty of heavy lifting between mine cart moments.
Gold Boom Symbols and Paytable
| Symbol | Quantity | Payout |
|---|---|---|
 |
5 | x10 |
| 4 | x5 | |
| 3 | x2.5 | |
 |
5 | x9 |
| 4 | x4.5 | |
| 3 | x2 | |
 |
5 | x8 |
| 4 | x4 | |
| 3 | x1.8 | |
 |
5 | x7 |
| 4 | x3 | |
| 3 | x1.5 | |
 |
5 | x6 |
| 4 | x2.5 | |
| 3 | x1.2 | |
 |
5 | x5 |
| 4 | x2 | |
| 3 | x1 | |
 |
5 | x2 |
| 4 | x1.2 | |
| 3 | x0.8 | |
 |
5 | x2 |
| 4 | x1.2 | |
| 3 | x0.8 | |
 |
5 | x1.5 |
| 4 | x1 | |
| 3 | x0.6 | |
 |
5 | x1.5 |
| 4 | x1 | |
| 3 | x0.6 | |
 |
5 | x1 |
| 4 | x0.8 | |
| 3 | x0.4 | |
 |
5 | x1 |
| 4 | x0.8 | |
| 3 | x0.4 | |
 |
Scatter | |
| 5 | x50 | |
| 4 | x10 | |
 |
Wild | |
| 5 | x50 | |
| 4 | x10 | |
| 3 | x4 | |
Mine Carts in Gold Boom
In the base game, one of five mine cart types can randomly appear above the rightmost reel. A cart only pays if a wild symbol lands on the reel directly beneath it, and more than one prize can land on the same spin. Carts shift one reel left on each spin, disappearing after reaching the first reel if they haven't paid. Positions for mine carts, Walking Wild Reels, and any held scatters are saved per bet amount, which lets me drop in and pick up where I left off.
The line-up includes Extra Scatter carts that add a held scatter towards free spins, Wild Multiplier carts awarding x2, x3, or x5 multipliers, Wild Reel carts that turn the whole reel wild, and Walking Wild Reel carts that march left between spins. The Collection Prize cart feeds the letter jackpots, granting MINI and MINOR letters in the base game, and MINI, MINOR, MAJOR, or GRAND letters during the relevant free spins variant. It's a straightforward trigger-and-shift loop with tidy pay-offs.
Collection Prize in Gold Boom
Letters spell out MINI, MINOR, MAJOR, and GRAND. Completing a set pays 15x, 50x, 250x, or 2,500x the stake, respectively. MINI and MINOR can land in both the base game and Collection Prize Free Spins, while MAJOR and GRAND are linked to the feature, though a MAJOR Spin or GRAND Spin can trigger at random in the base game. Letter collection is stored per bet, so progress sticks with each stake level rather than resetting between sessions.
Free Spins & Bonus Recharge in Gold Boom
Three or more scatters trigger free spins, which begin with mine carts above all reels and a fresh cart appearing over reel five on every spin. Before the round starts, a wheel awards one of four free spins modes, and only the selected mode is active throughout. This keeps the bonus focused, with the mine cart lane constantly feeding extra hits. The rhythm feels busy, especially when the chosen feature lines up with stored positions or a helpful cart flies in at the right time.
The options are 20 Collection Prize free spins, 10 Walking Wild Reels free spins, 10 Wild Reels free spins, or 10 Wild Multipliers free spins. Wild multipliers apply to the line wins they're part of rather than the whole spin, which keeps wins readable. Free spins can be retriggered, and a cart appears on the rightmost track each spin, so you always have something to aim at. It's a neat package of variants that mirror the cart types from the base game.
After the wheel, the Upsizer lets me pay to bump the awarded option to a more attractive one, with the costs shown on screen. When the feature ends, Bonus Recharge offers the chance to buy one additional free spin for a calculated price. The prompt can appear more than once, but it may be limited or unavailable at higher stakes or in some regions. Both tools suit players who want to press an edge when the set-up looks tempting.
Feature Buy in Gold Boom
The Feature Buy gives direct access to the wheel and its free spins for a fixed 50x the bet. It's handy when I want to skip to the action or chase a particular mode, though availability can be restricted by region, including Britain, or by stake. The cost feels in keeping with the math, and it's consistent with the studio's approach on related titles, so no surprises there beyond the usual regulatory carve-outs.
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References
Our editorial team
All our content is written by our editorial team and checked before publication. We play the games ourselves, verify licences and withdrawal terms, and update every review as soon as something changes.
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