Free Cash Pump slot
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Cash Pump slot by Play'n Go takes us to Route 66 it seems with twangy guitar music accompanying our play with the reels set in a petrol pump on a desert highway. It has a multi-grid set-up as we have seen before with a few slot games such as WMS' Gems Gems Gems although you're more likely to have played Novomatic's 4-grid version of Reel King or we can return to WMS with their Roman Chariots slot, so popular in land-based casinos. So will we be pumping cash into our bankroll or out into the insatiable fuel tank of this old jalopy?
We have 20 fixed pay lines on Cash Pump slot and they are split over 4 slots of 3 reels and 5-lines each. Stacked Wilds can appear on the centre reels of all 4 grids and the scatter can only appear on the middle reels too. The symbols are all stacked and the 3-of-a-kind pays are 5x bet for the Bars, 2.5x 7'S, 1x Melon, 0.5x Plum and 0.25x for Cherry or Orange. When a stacked Driver Wild appears on any grid it replicates to the other 3 Grids too and you get a random 1,2,3 or 4x multiplier awarded to it, which is shown on the top right.
You get 7 free spins for seeing a Pump scatter on all the centre reels of all 4 grids at once. You will notice more Wilds appearing during the spins and if you collect 4 scatters, the multipliers increase to 2,4,6 and 8x plus you get 5 extra spins. There is no limit to this so another 4 scatters will add 1x to the various multipliers making them 3,6,9, 12x and so-on. As in the base game the Wild reel replicates and randomly chooses one of the 4 available multipliers. You can win up to 10,000x bet according to the rules!
I don't usually like slots with this multi-grid mechanic as they are hard to follow sometimes, but Cash Pump slot is actually quite playable despite the music getting on my nerves after a while. The base game can pay plenty of wins to keep you afloat here and the free games, while hard to get, are usually very productive with some good totals. You get a 96.20% RTP so about average there and you do need those Wild multipliers to be 2 or more in the base game when they occur and replicate. So I'd definitely drive this route again and pump some more cash into this slot in future...