Gold Strike Express Slot by Blueprint Gaming

The setting is a torch-lit mine shaft with brown rock walls streaked by faint gold veins, and the reels sit inside a polished wooden frame that looks bolted into the cavern. A curved train track runs above the grid, holding five mine carts every spin. Some carts carry cash tags like 1.00, 2.50 or 3.00, others show skull-and-crossbones markers, and the GRAND, MAJOR and MINOR pots (500x, 100x, 25x) are stacked on a vertical ladder to the left.

The track is the entire engine here. Cash Prize symbols (gold-nugget rocks with values stamped on them) do not pay on lines at all. They wait. A Collect Scatter, the gold bag labeled COLLECT, grabs the value from the carriage directly above whichever reel it lands on, and that is the only way base-game cash gets paid out. So a 500x carriage parked above reel 3 is meaningless until a Collect lands on reel 3 to claim it.

Six Cash Prizes in view, or five plus a Train symbol, triggers the Cash Collect respin round. Symbols lock, only Trains, Collects and blanks spin in, and every fresh hit resets the counter back to three. Each Collect that lands transforms into a Cash Prize using the value from the carriage above it, so the track keeps feeding new totals into the grid. Fill 14 of 15 positions and the Super Spin kicks in, swapping the carriages for MINOR, MAJOR and GRAND only.

If a Train symbol shows up at any point in the Cash Feature, the Gold Strike Express round runs after everything else resolves. Up to five trains rumble across the track with random carriage counts and prizes between 5x and 500x, and the multiplier floor jumps to 5x for this round (no 1x or 2x carriages allowed).

The base game has four random modifiers tied to the steam-locomotive logo on the right of the reels: Stacked Collect, Cash Add, Wild Add, and Express Spin, the last of which guarantees both bonus rounds in a single go. The red miner Wild substitutes for everything except Trains, Collects and Cash Prizes, and three together on one reel stack into a single tall Wild.

Worth noting on the Express Bet button, sitting bottom-right at 1.50 on a 1.00 stake. That is a 0.5x premium, far cheaper than the 5x ante on Triple Action Cash Strike, and it only nudges Cash Feature trigger odds rather than gating the bigger Gold Strike round. Cheap enough to leave on, basically.