Jack Hammer 4: Chasing the Dragon Slot Review

Detective Jack Hammer is back on a case, and this time the trail runs through a comic-book Chinatown after a crook who calls himself the Dragon. The idea that carries the whole game sits in the four corners of the board.

Those four cells never hold a normal symbol. They hold a Wild or a Question mark, nothing else, and each Wild does something different: multiply, upgrade the cluster, pay a cash amount, or grow the cluster outright. The rest is a 6x6 grid on cluster pays, where any win of 6 or more touching symbols sticks in place and re-spins until nothing new joins it. Pull a corner into that growing blob and the spin changes character.

The numbers are unforgiving. RTP 96.01% on the top tier, very high volatility, a 24% hit rate, and a ceiling of around 10,000x. Fourth game in the line, and the second since the series abandoned reels for clusters with Jack Hammer 3: Diamond Affair.

It is the same hand-inked NetEnt comic style the franchise has used since 2010, and the key art sells it best: Jack in a brown fedora and green trench coat, jaw clenched, flanked by a blonde in an orange mandarin-collar coat with a flower pinned in her hair and a dark-haired woman half hidden behind a red fan, while the Dragon looms behind them as a purple silhouette with two glowing green eyes over the rooftops.

In play the grid floats over a steep Chinatown street at night, blue-grey tenements with lit windows, vertical red-and-gold shop signs down the walls, red paper lanterns strung across the frame. Symbols are flat colour tiles rather than rendered objects: the detective on olive green, a white-bearded elder smoking a pipe on purple, a jade dragon statue on yellow-green, a pink teapot on blue, and parchment squares carrying single Chinese characters for the low pays. The corner cards are the nicest touch, torn-paper rectangles thrown over a yellow starburst, printed WILD with their value or a fat black question mark.

Where it drags is the board itself. Six rows of small flat tiles, four of the nine symbols being near-identical parchment characters, and the result reads busy and a bit washed out. The art was charming fifteen years ago and it has not been redrawn since, which some will read as heritage and others as a studio coasting.

A quarter of spins hit something, which sounds generous until you see what most of those hits are: six low tiles bunched in a corner of the board, worth a third of the stake, re-spinning once and dying. The board is loud about it, everything locks and flashes and spins again, and then the total lands under what the spin cost. That rhythm runs for a long time.

What keeps it watchable is the corners. They are visible on every single spin, a x3 sitting in the top left, a 0.50 bottom right, a question mark waiting, so the board always looks like it is one symbol away from mattering. Most of the time it isn't. But the Sticky Win chain does a clever thing psychologically: because nothing pays until the chain stops, you are never watching a win, you are watching a win being assembled, and each extra symbol that joins is a small event.

Get through to the bonus and the pace flips completely. Three spins, a counter resetting over and over, multipliers piling up while you wait for Double and dread Collect. It is tense in a way nothing before it was. Which is also the problem, because five Scatters is a rare ask and the 100x price tag on the shortcut tells you roughly how rare.

Add in the Elevate menu, four corner behaviours in the base game and four more in the bonus, and there is a learning curve here. Probably two or three sessions before it stops feeling like reading instructions mid-spin.

Restricting Wilds to four fixed corners is a smart bit of design. It gives every spin a visible target, and it turns the Sticky Win chain from a passive lock-and-re-spin into something with a destination. NetEnt clearly thought about this game rather than stamping out another cluster grid.

The execution does not fully keep up. The base game is dry enough that long stretches pass with nothing but sub-stake dribbles, the symbol set is flat, and almost everything good is locked behind a five-Scatter trigger that most sessions will never see without paying for it. The 10,000x headline is a lottery ticket at one in 50 million and should be read as decoration. What you are actually playing for is a decent bonus with a well-built multiplier engine, reached either rarely or expensively.

As franchise entries go it earns its number. It is more interesting than Jack Hammer 3 and considerably harder work than the 2010 original, and the corner system deserves to show up in a game with a livelier base to sit on.