Money Cart Slot by Relax Gaming

When the UK Gambling Commission killed Buy Bonus features in 2020, Relax Gaming flipped the problem inside-out: build a slot where the bonus IS the entire game. No base spins to grind through, no scatter triggers, no buy button - just a sealed wagon and the chance to fill it with cash. That's Money Cart. Every spin you launch is already the bonus.

Each round opens with three respins. Land any coin, Payer, or Collector symbol and the respin counter resets. Coins lock in place showing values from 1x up to 200x your bet. The Persistent Payer is the mounted gatling-style cannon - it stays for the rest of the round and dumps its own value onto every visible coin and Payer at the end of every spin, snowballing the totals. The Persistent Collector is the cowboy hat full of bills, and it does the opposite: every spin, it sweeps the value of every coin and Payer on screen into its own pile. Drop both on the grid and the loop becomes brutal. Payer feeds the coins, Collector then drains the entire board into one symbol. The math compounds fast.

The standout moment is the grid expansion. A Re-spin trigger pushes the reel set from 5 columns out to 7, two extra strips of locked positions appearing mid-bonus to give every persistent symbol more targets. This 5-to-7 expansion is unique to the original game - the Money Cart sequels rebuilt the formula with different mechanics, but the prototype's runaway-train pacing only exists here.

The wagon itself sits in front of a dusk-pink sky over a sleepy ghost town - blurred saloon windows glowing yellow, a windmill spinning behind, brass-fitted iron panels boxing in the four-row reel set. Top of the cart shows the spins-left tally on the left and the running total on the right, both burned into wood plaques. It's a stripped-down setting compared to the chaotic Money Train interior, and that quiet works for it. The whole game is an exercise in stillness punctuated by symbols slamming into place. The cap of 2000x your bet is modest by 2020s standards, but with a hit frequency this generous and zero base-game dead spins, it pays out far more often than the ceiling suggests. A genuine Wild West heist where you're the cart, not the bandit.