4 Mine Carts: upcoming slot by 3 Oaks Gaming
Four mine carts loaded with glittering ore rumble through a bright canyon while a cheerful miner and his dog search for the next haul. 4 Mine Carts builds its 5x3 setup around four progressive Pots above the reels, turning the mining trip into a Hold & Win feature where several bonus mechanics can become active at the same time.
4 Mine Carts Game Details
| Category | Details |
| Provider | 3 Oaks Gaming |
| Release Date | November 2026 |
| Game Type | Video Slot |
| Theme | Mining Adventure |
| Reels | 5 |
| Rows | 3 |
| Paylines | 25 |
| Bonus Features | Hold & Win, EXPAND, POWER, COLLECT, MULTI |
| Jackpots | MINI, MINOR, MAJOR, GRAND, ROYAL |
| GRAND Jackpot | x1,000 |
| ROYAL Jackpot | x3,000 |
| Bonus Buy | Random Bonus Game, Super Bonus Game |
4 Mine Carts Base GameplayFour Pots Lead into Hold & Win
The four mine carts positioned above the reels work as progressive Pots, each waiting to be filled with gold and gems. Filling one or more Pots triggers the Hold & Win Bonus Game.
During the bonus, new Bonus symbols can bring cash values as well as fixed MINI, MINOR and MAJOR Jackpot symbols. Filling all 15 positions awards the GRAND Jackpot at x1,000 the bet.
4 Mine Carts Hold & WinThe round can start with a random combination of one to four additional features. Each is connected to its own coloured Pot, so triggering several Pots can bring several mechanics into the same bonus.
4 Mine Carts Bonus FeaturesEXPAND, POWER, COLLECT and MULTI Change the Bonus
EXPAND can unlock as many as three additional rows. If all three are opened, the playing area reaches 30 positions, and filling the complete grid awards the ROYAL Jackpot at x3,000 the bet.
POWER introduces Power symbols. Once the main Bonus Game finishes, collected Power symbols can lead into the Power Bonus Game, which moves the respin action to a wheel-shaped grid. Filling all six positions there activates a multiplier of up to x10.
COLLECT adds Collect symbols that gather the values currently present on the screen. MULTI, meanwhile, can place multipliers of up to x5 on random positions. If another multiplier reaches the same position, the two multiplier values are multiplied together rather than simply added.
Bonus Buy Can Start with One or All Four Features
Bonus Buy offers two routes into the feature. The Random Bonus Game begins with between one and four randomly selected bonus mechanics, while the Super Bonus Game starts with all four — EXPAND, POWER, COLLECT and MULTI — active.
This makes the structure of the bonus depend not only on the coins that arrive after it begins, but also on which mine carts have brought their mechanics into play.
4 Mine Carts Digs Deeper as the Features Stack
The mine starts with a compact reel set, but the bonus can quickly grow into something much busier as carts fill and their individual powers join the round. Extra rows, collected values, multiplying positions and a second Power stage give the journey deeper into the canyon several different ways to uncover its biggest treasures.
