Xterminate (Thunderkick) – Review & Demo Play

The Xterminate Slot Game

Brace yourself for Xterminate, as the opener flashes a warning that it's not for the faint of heart. Thunderkick drops you into an angry mob scene that clashes with a slick, futuristic skyline, and the filmic audio suits the chaos. The interface keeps things minimal on the right, so I was straight into it. All action plays out on a 6x5 grid using Scatter Pays, where 8 or more matching regular symbols anywhere on the board count as a win.

Xterminate runs an Avalanche cycle after every hit. Winning symbols are removed, gaps fill from above, and if another 8+ shows, the sequence repeats. You're paid as multiples of the bet when the avalanching ends. Stakes range from 10p to £100 a spin, giving room for casual testing or heavier punts. There's no separate bonus round here, so everything rides on the base game engine and its extras, which is where the multiplier, bombs and charged wilds kick in.

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Symbols and Payouts in Xterminate

What do you expect in a riot? Spray paint, spiky bats, gas masks, and tech gone rogue. The paytable mirrors that. There are 9 standard symbols split into two groups: the graffiti-styled 10, J, Q, K, A as lows, then Spray Paint, Spike Bat, Gas Mask, and the glowing-eyed Robot as highs. Scatter Pays means 8 or more identical regulars anywhere will do; the more you land, the bigger the return when the avalanche sequence ends.

On values, low cards run roughly 1x to 3x for 12+ of a kind, while the themed items climb to 2x to 5x, with the Robot topping out around 7x the stake at 12+. Two specials sit outside that set. Charged Wilds stand in for all but bombs and arrive with 1 to 3 lives. Bomb symbols come into play on a dead spin, reshaping the grid to set up the next avalanche.

Xterminate Symbols and Paytable

Symbol	Quantity	Payout
	Wild
	12+	x7
	10+	x5
	8+	x4
	12+	x5
	10+	x3
	8+	x2
	12+	x5
	10+	x3
	8+	x2
	12+	x5
	10+	x3
	8+	x2
	12+	x3
	10+	x2
	8+	x1
	12+	x3
	10+	x2
	8+	x1
	12+	x3
	10+	x2
	8+	x1
	12+	x3
	10+	x2
	8+	x1
	12+	x3
	10+	x2
	8+	x1

Xterminate Slot Bonus Features

Everything happens in the base game, and the headline is the Xterminate Multiplier Feature. All wins are expressed as multiples of your stake and feed the multiplier above the grid. Each hit is first multiplied by the current value, then that amount is added back to the meter. When the avalanche run finishes, the final multiplier is applied and paid. The meter then resets for the next spin, so streaks matter.

Bomb symbols only detonate when no win is present. When they do, they wipe out every symbol type except the most common one visible, any Charged Wilds, and other bombs. If two or more are equally common, the slot holds the highest-paying option. Everything else goes, space opens up, and fresh tiles fall. It's a smart board clear that can turn a nothing spin into the start of a cascade.

Charged Wilds substitute and arrive with a random 1 to 3 lives. One life is consumed the first time that symbol helps any win in a sequence, regardless of how many combinations it makes, and when it runs out, it's removed. There's also Bet+, which lets you pay extra for different odds. A 2x mode costs twice the stake, a 5x mode costs five times, and a 10x mode guarantees at least one win per spin, with RTPs rising up to 95.45%.

How to Win at Xterminate Slot

The board is 6 reels by 5 rows, and Scatter Pays do the heavy lifting. Hit 8 or more identical regulars anywhere to trigger the avalanche loop and feed the multiplier. I click the bet display to pick a level between 10p and £100, then spin or set simple Autoplay. The info panel holds the rules and paytable. Beat the slot's fierce maths with a chain of hits and the meter can snowball, with up to 25,000x the bet on the table.

Xterminate Slot RTP & Volatility

This one opens with a warning for a reason. Xterminate is highly volatile, and the default RTP sits at 94.12%, which is below par. The swings can feel brutal when the dead spin spiral kicks off, though the alternative modes soften the blow if you're willing to pay up. The 10x option that guarantees a win per spin posts an improved theoretical return near 95.45%, but the outlay is steep and your base stake remains the same.

Gallery of video and screenshots of the game