Khonsu Merge Up

Khonsu Merge Up Slot Review

Moonlight over the dunes, a gold-armoured god on the right-hand side, and a paytable with no floor to speak of: Khonsu Merge Up gives almost nothing away between wins, then hands you a board that rebuilds itself into something better every time one lands. That’s the whole pitch, and it’s a more extreme version of it than most slots dare.

BGaming has taken its Merge Up system – winning symbols combining into higher-value ones – and pushed it into very high volatility territory, so the payoff for a chain is bigger and the wait between chains is longer.

The numbers run hot: 97.01% RTP, very high volatility, a 6×4 grid with 4096 ways and a 10,000x win ceiling. It shares its family with Sugar Merge Up and Bonanza Billion MergeUp.

Symbols and 4096 Ways

Wins pay across adjoining reels from left to right, with matching symbols counted in any position on those reels. A combination needs three or more of the same symbol to pay, and only the longest combination of coinciding symbols gets paid. That’s standard ways behaviour, but the count matters here: the ways figure climbs during play, which is where the bigger boards come from.

The symbol set is a monster roster: Khonsu himself tops it, followed by a purple wolf, a red vampire, a green snake, a blue wolf and a pink bat. Every one of the six pays from three symbols up, so there are no low-value card royals padding the lower rows.

The wild is the ankh, and it substitutes for any symbol except the scatter when completing a winning combination. If a wild contributes to combinations with different symbols at once, it completes each of them. On a crowded board, that single rule does a lot of quiet work.

The hit rate is 3.76%, which tells you most of what you need to know about pacing: most spins land nothing, and the ones that land anything can run long. Free spins arrive at an average rate of one round every 161.67 spins.

The pays are flat at the bottom and steep at the top, which shapes everything about how the base game feels. Here’s the full ladder:

• Gold-crowned man (Khonsu): 1.20 / 2.40 / 5.00 / 10.00 for three to six symbols
• Purple wolf: 1.00 / 2.00 / 4.00 / 6.00
• Vampire (red): 0.80 / 1.60 / 3.20 / 4.40
• Green snake: 0.80 / 1.40 / 2.80 / 3.60
• Blue wolf: 0.80 / 1.20 / 2.40 / 3.20
• Pink bat: 0.80 / 1.20 / 2.00 / 2.80

The gap between the top of that ladder and everything under it is wide, and that’s deliberate: the merge mechanic exists to drag ordinary wins up the ladder, so the flat bottom of the table is the raw material rather than the destination.

Merge Up, Refills and Split Symbols

Refilling

Winning symbols disappear once they’ve paid out, the remaining symbols fall, and new ones fill the empty cells. Refills keep going for as long as new winning combinations form. Each refill also doubles the multiplier held in Khonsu’s hands, and that multiplier applies to every win collected after it.

The doubling is cumulative across a chain, so a third refill pays at four times the starting multiplier and a fifth at eight times. It’s the engine behind the game’s biggest swings: a long chain of modest wins can out-pay a single big hit, because the last wins in the sequence carry all the multipliers built by the ones before them.

Merge Up

After a win, the paid symbols merge into a single higher-value symbol, which is placed in one of the empty cells. Merged symbols keep their new size until the spin ends or a bonus game begins, so a long refill chain can leave the board stacked with premium monsters.

That’s the appeal of the system: wins don’t just pay, they upgrade the screen that pays the next one.

Split Symbols

The Split symbol can appear only on reels two, three, four and five. When it lands, it divides into a random number of identical symbols, up to six, filling the reel with copies and opening far more ways than the base count suggests.

Combined with merges, it’s what turns a modest board into a crowded one. A split on its own adds ways; a split that feeds a merge adds value and ways at once, which is the combination the whole design is built around.

Free Spins and Super Free Spins

Three or more scatters trigger a bonus game, and the count decides which one. Landing three or four scatters awards Free Spins; five or six unlock Super Free Spins. The awards step up with the trigger:

• Three scatters: 8 Free Spins
• Four scatters: 10 Free Spins
• Five scatters: 12 Super Free Spins
• Six scatters: 14 Super Free Spins

Both rounds run on the progress bar. Every winning refill fills a quarter of one segment, and completing a segment awards two extra free spins. The completed segment’s symbol also gains a power: Split abilities in the standard round, Wild powers in the Super version.

That distinction is the whole reason to chase six scatters. A symbol with Wild powers in Super Free Spins doesn’t just split, it substitutes, and with the refill multiplier doubling on every cascade the board can compound quickly. Progress carries through the entire round, so late spins tend to be richer than early ones.

Four completed segments in a round would add eight spins on their own, before any scatter-based retrigger is counted. In practice the bar and the refills feed each other: empowered symbols make wins more likely, wins fill the bar, and the bar empowers more symbols.

Bonus Buy Options

There are five purchase options, and only one purchased feature can be active at a time. Prices scale with the current bet and are shown in the buy menu rather than fixed on the rules.

• Chance x5: increases the chance of triggering a bonus game fivefold on subsequent spins
• Chance x10: the same boost, tenfold
• Free Spins: instantly triggers Free Spins with three scatters
• Super Free Spins: instantly triggers Super Free Spins with a stronger starting scatter setup
• Random Free Spins: randomly activates Free Spins or Super Free Spins

The Chance options are the interesting ones. Rather than buying the round outright, they raise the odds on every spin that follows, which suits a bankroll that wants the bonus to arrive mid-session rather than at the press of a button.

The outright buys have their own logic too. Random Free Spins costs less certainty, Free Spins guarantees the standard round, and Super Free Spins starts with the stronger scatter setup that would otherwise demand five or six scatters landing on their own.

Our Honest Verdict

Overall Rating: 7.7/10

This is a slot you play for the rebuild. Nothing happens for a while, the desert night stretching quiet, and then one win sets off a chain that ends on a board you wouldn’t recognise. That single arc – from empty dunes to a stack of merged monsters under a doubled and redoubled multiplier – is the one reason to pick it over a steadier game.

The progress bar is the smartest thing here: a segment completing mid-round doesn’t just add spins, it upgrades a symbol, so a bonus round grows teeth as it goes. The weakness is just as real. With a hit rate of 3.76% and five of six symbols paying 0.80 for three, the base game is close to silent between chains, and very high volatility makes those silences expensive.

So it’s for players who enjoy the build and can bankroll the wait, and it’s a poor fit for anyone who wants regular wins to keep a session warm. The moon god rewards patience, and here he charges for it.

Khonsu Merge Up FAQs

• What is the RTP of Khonsu Merge Up?

  Khonsu Merge Up has an RTP of 97.01%, which is comfortably above the typical online slot average.
• Is Khonsu Merge Up high volatility?

  Very much so. Khonsu Merge Up is rated very high volatility, so wins arrive less often but with the potential to compound significantly through its refill and merge mechanics.
• How many paylines does Khonsu Merge Up have?

  Khonsu Merge Up has 4096 ways to win, with matching symbols on adjoining reels from left to right all counting towards a win.
• What is the grid size of Khonsu Merge Up?

  The game plays on a 6×4 grid, with six reels and four rows of symbols.
• When is Khonsu Merge Up released?

  Khonsu Merge Up’s release date is 2 November 2026.
• Who makes Khonsu Merge Up?

  Khonsu Merge Up is made by BGaming, the studio behind the Merge Up series and titles like Sugar Merge Up and Bonanza Billion MergeUp.
• How do you trigger Free Spins in Khonsu Merge Up?

  Land three or more scatter symbols. Three or four scatters award Free Spins (8 or 10 spins), while five or six scatters award Super Free Spins (12 or 14 spins), where progress bar segments grant Wild powers instead of Split powers.
• What does the progress bar do in Khonsu Merge Up?

  Every winning refill fills a quarter of one progress bar segment. Completing a segment awards two extra free spins and gives that segment’s symbol the power of a Split symbol or a Wild symbol, depending on whether you’re in Free Spins or Super Free Spins.