Gemhalla Xtreme: BGaming toughens up Gemhalla to take on Gates of Olympus 1000

We spent more than 20 hours on Gemhalla Xtreme, running over 5,500 spins. ×1,000 bomb showing up in the base game, a very different feel once the free spins start, max win that genuinely looks reachable. We cover the lot in this review.

Gemhalla Xtreme launches on 04/06/2026 from BGaming. It is the direct sequel to Gemhalla (2023), pushed into very high volatility with a multiplier that can hit ×1,000 and a max win lifted to ×10,000 your stake.

Gemhalla Xtreme: RTP, max win and volatility (technical sheet)

How Gemhalla Xtreme plays: scatter pays and cascades

Thor is back on the clock. Mjölnir in hand, he stands to the right of the grid, ready to zap the shields as they drop in. The mood is darker than Gemhalla v1, the colours hit harder, and the 6×5 grid stays close to the original.

Scatter pays explained: 8 symbols, anywhere on the grid

The core idea has not changed: no paylines. This is scatter pays, and that is a good thing here.

You land a winning combination as soon as 8 or more matching symbols appear anywhere on the grid, position does not matter. Winning symbols disappear, new ones drop in, and as long as another win lands, the cascade keeps going.

It is easy to read. That is also why we would point this slot towards anyone who does not want to spend half the session decoding awkward payline logic. Yes, Hacksaw Gaming, that one is for you.

Gemhalla Xtreme bonus: 15 free spins and a multiplier pool

You need 4 or more Viking longship scatters on the grid to trigger the bonus. That gives you 15 free spins.

Slight gripe here: landing more than 4 scatters does not add extra free spins. Bit flat. During the bonus, though, 3 scatters add 5 extra free spins.

The multiplier pool: the accumulator chasing the max win

The mechanic is simple enough. Every time a bomb lands and connects, it multiplies the value of your connection.

The part we like is what happens next: that bomb value stays in an accumulator, then adds up with other bombs that can land, and connect, during the same bonus.

Important detail: if a bomb lands but does not connect, it does nothing. You understand the volatility quickly from there. If several high bombs, ×500, ×250, ×100 and so on, connect on the final spins, the max win starts to feel within reach.

We hit ×6,537 in the bonus through this mechanic. We cover the full detail lower down in “Our experience”.

Which Buy Bonus should you choose on Gemhalla Xtreme?

Instead of waiting 168 spins on average to trigger a bonus, BGaming lets you buy straight in. There are 3 options, and some of them are seriously volatile.

We tested all of them. Unfortunately.

The simple version: you get three bonuses. The standard one costs ×100 your stake and starts with a ×0 multiplier. Then you have the ×300 buy, where the starting multiplier is ×50. Once you understand how these slots work, you already know that is strong.

Where BGaming really pushes it is the ×500 buy. You start with a ×100 multiplier in the pool. That is exceptional, no real debate there.

So we tested it. We also got absolutely battered more than once.

Because yes, these slots love dropping 10,000 bombs into the bonus and connecting none of them. We will not dress it up: across roughly 10 buys, we probably finished in profit twice. Brutal, but not surprising for this type of Buy Bonus.

The ×300 buy got several runs too. Not sold on that one either. The price feels a bit heavy for the starting multiplier.

Gemhalla 1 vs Xtreme vs Gates of Olympus 1000

Anyone who knows online slots can see what Gemhalla Xtreme is doing. It is a very clear Gates of Olympus 1000 copy, at least on the surface.

So between Gemhalla, the Xtreme version and old man Gates, yes, that is the nickname, what do you pick?

All three, honestly.

Each slot brings something different. Gemhalla is the old-school one. Gemhalla Xtreme works for us because, even with only ×10,000 max win compared with ×15k on Gates of Olympus 1000, it brings bonus options that feel genuinely different. Credit to BGaming there.

Gates is still the pick if you want extreme volatility in its purest form. We explain that properly in our Gates of Olympus 1000 review.

The real difference when you move from v1 to Xtreme is the ×1,000 bomb. It feels like more bombs are landing, but fewer are connecting.

That leaves you stuck in permanent tension, waiting for the big one to finally pay. More potential, more pressure, more frustration too.

Gemhalla v1 or Xtreme: what actually changes?

The real shift from v1 to Xtreme is the ×1,000 bomb. It feels like more bombs are dropping, but fewer are connecting.

That keeps the whole game on a knife edge. You are always waiting for the big one to finally land properly. More tension, more potential, more frustration too.

Our experience: 5,500 spins, +€137 from one single hit

20 hours on Gemhalla Xtreme. More than 5,500 spins played at an average stake of €0.20.

Financial result: +€137 across the session. That is rare on a very high volatility slot like this, and we owe it to one single hit. A mad one, to be fair.

We were spinning normally, then the bonus popped. Finally.

Fourteen free spins passed, nothing really happened. We are used to that. Pool stuck at ×2, and we were already thinking, “here we go, another bonus that pays...”

Then the ×1,000 bomb dropped and did not connect. Proper head-through-wall moment.

Second-last spin. Boom. The ×1,000 landed right on a cascade that paid, and paid properly.

×6,537 stake. €1,307.40 from one single round at €0.20.

Yes, we will admit it. A few days later, we still do not really understand how that happened. But that is what we like in multiplier slots: you think the bonus is dead, then one hit turns into one of the biggest multiplier wins you have ever seen.

Gemhalla Xtreme delivers that feeling better than plenty of others.

Fine, it happened once across around 100 bonuses, buys and natural triggers included. Still, when it lands, it is hard not to feel it.

Gemhalla Xtreme: strengths and weaknesses

What we like

• ×1,000 bomb added, and it genuinely changes the game compared with v1
• 3 Buy Bonus options, Thunderous, Godlike and Beyond Godlike, giving you different volatility levels
• Max win lifted to ×10,000, double the original

What we liked less

• ×300 Buy Bonus, Godlike, feels too expensive for what it gives you
• Plenty of bombs land, but not many actually connect, so the frustration repeats
• Minimal visual effort, this is clearly recycled from v1

Verdict: is Gemhalla Xtreme worth playing?

BGaming has copied the Gates of Olympus 1000 formula and dressed it in Norse clothing. It is obvious, and it works.

This time, though, the result is genuinely convincing. Where we think BGaming gets ahead is the RTP. How they managed to offer a ×10,000 slot with a 97.17% RTP is beyond us, but fair play for giving the numbers back to the user.

The ×6,537 we hit was exceptional. We know that.

Without it, we would have finished around -€200, as usual on very high volatility slots. Still, the fact that this kind of hit can land on a standard Thunderous bonus at €0.20 says something about the real potential here.

Who it suits: you like explosive setups, cascades, and tension on every spin. Suggested minimum bankroll: €30, with 300 to 400 spins behind you to absorb the variance. Typical stake: €0.20 if you have €20, €1 if you have €500. Calibrate from there.

Who it does not suit: if you struggle with extreme volatility slots like Gates of Olympus or Wanted Dead or a Wild, skip it. Same if you want wilds, classic paylines or lots of extra features. None of that is here, just bombs in the base game.

BGaming has built its most competitive slot to date. With a 97.17% RTP, it proves very high volatility can exist without taking the piss out of the user.